Gcse statistics seasonal variation. GCSE; Edexcel; Representing data - Edexcel Time series.

Gcse statistics seasonal variation. Step 4 – Calculate the seasonal variation.
5 11 11. Hussain Ali. Apr 23, 2020 · The first ppt is only on time series and suitable for GCSE maths. Paul is a passionate fan of clear and colourful notes with fascinating diagrams – one of the many reasons he is excited to be a member of the SME team. Jul 25, 2016 · Seasonal Variation = Actual Data or Forecast Data – Trend It will be this last formula that will be used to find the seasonal variation for our data. How do you predict a value when using Seasonal Variation? Interpreting a time series graph. Jan 10, 2019 · Explore all the terms around evolution, including 'natural selection', 'variation', and 'survival of the fittest'. 79 1. Revision notes for the Edexcel GCSE Statistics: Foundation syllabus, written by the Statistics experts at Save My Exams. 3-point moving averages are plotted in the same vertical line as the middle point. Plotting Time Series; Moving Averages; Equation of the trend Line; Seasonal Variation Finding and studying GCSE Statistics flashcards & notes from students and teachers on Knowt is super easy to do! We’ve got the perfect set of notes and flashcards for your every need - whether you’re preparing for a quick pop quiz or cramming for a huge midterm. 3) Calculating the mean seasonal variation. Maths courses running on 21-22nd and 27-28th August. Resource type: Lesson (complete) Michael Craven's Shop. (2) The trend is for the number of days of work lost to increase. All questions are from the Edexcel GCSE Statistics new specification and include both higher and foundation questions covering trend lines, moving averages, seasonal variations and predicted values. • Recognise seasonal effect at a given data point and average seasonal effect. Grouped & Ungrouped Data What are the advantages and disadvantages of grouping data? For a relatively small data set it is okay to leave the data in ungrouped form. 23/08/19 12:46 AM. (1) Seasonal or cyclical trends are patterns in the data that repeat over time. 3 performed a street dance, 8 performed a jazz dance and 1 performed a tap dance. Statistics: Higher. Warfarin is the active ingredient used in rat poison; Random mutations in the DNA of rats have produced new alleles and resulted in some individuals being naturally resistant to warfarin Calculate summary statistics to allow the data to be compared Consider your target audience when presenting the data Acknowledge any sources used (e. The references to average seasonal variation are not within the scope of the maths GCSE so you can ignore these. This phenomenon is particularly relevant in fields such as statistics, data analysis, and data science, where understanding these variations can significantly enhance forecasting accuracy and decision-making A01_ED_GCSE_STATISTICS_RW_1614_TP. Welcome to STATS ACADEMY Your go-to website for GCSE Statistics Revision. Mean . 5 seconds. Example: If b is inversely proportional to the square of a, and when a = 3, b = 1, find the constant of variation. 266441 GCSE Statistics Practice Book_CH06. Each topic consists of interleaved starters, a workbook, homeworks and assessments. It also randomly generates sets of questions, so you can differentiate the work if necessary. the heights (in metres) of eight students in a school club 1. The seasonal variation at a point = actual value at that point – value as shown by the trend line Seasonal variation for 1980 148 – 97 = 51 Seasonal variation for 1981 52 – 92 = -40 GCSE, A level, pure, mechanics, statistics, discrete – if it’s in a Maths exam, Paul will know about it. Browse our range of AQA GCSE Statistics Past Papers and Mark Schemes below. Genotypic variation can cause phenotypic variation and environmental factors can also cause phenotypic variation. Seasonal variation in weather is primarily caused by the tilt of the Earth’s axis and its elliptical orbit around the Sun. e. 2 Variation & Evolution for the AQA GCSE Biology syllabus, written by the Biology experts at Save My Exams. Seasonality may be caused by various factors, such as weather, vacation, and holidays [1] and consists of periodic, repetitive, and generally regular and predictable patterns in the levels [2] of a time series. The shape formed by the points goes from top left to bottom right (negative gradient), so there is negative correlation As one quantity increases (price), the other decreases (time) Note that time decreasing means that the computer is running faster Study with Quizlet and memorize flashcards containing terms like When plotting a time series, where do we plot time?, General trend, What may a trend line show? and more. GCSE Maths Statistics learning resources for adults, children, parents and teachers. It supports both Foundation and Higher students through its di† erentiated unit structure as well as a large bank of stepped questions o† ering fl exibility over how the course is delivered. For example: The moving average would be plotted above February. Feb 22, 2018 · New GCSE lesson on variation for the AQA syllabus Learning Objectives: Describe the different types of variation Explain why identical twins are not exactly the same Standard Deviation What is the standard deviation of a data set? The standard deviation of a data set is a measure of dispersion (i. Concise resources for the Edexcel GCSE Statistics: Higher course. Jun 28, 2019 · A set of 4 ‘lessons’ covering everything needed on time series for GCSE Statistics, dependent on the time you spend each week this should be roughly half a terms worth of work. EXAMPLES We consider the time series of any phenomenon; we have trimestrial data taken over a 6 years, summarized in the following table: Information about the Edexcel GCSE in Statistics (2017) for students and teachers, including the specification, key documents and the latest news. GCSE STATISTICS Higher tier Paper 2 [Source: Office for National Statistics] Calculate the mean seasonal variation for Quarter 1for the three years. Once a trend has been established, any seasonal variation can be calculated. Using bar charts, pie charts and frequency diagrams can make information easier to digest. Draw a horizontal line from 3. 5 on the time axis until it hits the line of best fit, then draw a vertical line down to the price axis and take a reading. what is the formula for standard deviation? (use 'sqr' to represent the square root sign, 'sum' for sigma, and 'xhat' for the x with a line on top) A seasonal variation is a pattern that repeats in the time series here we can see the price of kiwi fruit rises substantially in March. Edexcel GCSE (9–1) Statistics Student Book 11 – 19 PROGRESSION This Student Book follows the Edexcel scheme of work for GCSE Statistics. 23 AQA GCSE Statistics. Warfarin resistance. Mean seasonal variation = Answer thousand . Revision Notes. Maths Genie GCSE Revision - GCSE Statistics Revision: topics not in GCSE Maths, revision videos, past exam papers and model solutions. Step 4 – Calculate the seasonal variation. CorbettMaths Links: Time series Video 382 Aug 11, 2024 · PowerPoint Presentation on Distributions, Variance & Standard Deviation (18 slides): Reviews and interprets different types of frequency distributions and explains how to calculate and use variance and standard deviation. (b) Write down the type of correlation shown and interpret this in the context of the question. It can also be used to show underlying trends and seasonal variation support your GCSE Statistics revision. (e) Suggest a reason for this. Calculate a four-point moving average. The variations either side of a trend line are called seasonal variations. 19 20 The mean seasonal effect for the first quarter is +38. 3K views 2 years ago. For example an ice cream shop may see higher sales every summer and lower sales every winter. Study with Quizlet and memorize flashcards containing terms like Sample, Random Sampling, Systematic Sampling and more. Objectives of Time Series Analysis 1. The resource is designed to enable learners to develop their knowledge of statistical concepts and methods, while consolidating mathematical skills and building confidence when handling a range of Learn how genetics and environment influence variation in species for GCSE Biology, AQA, with examples and quizzes. Revision notes on 3. docx Created Date: Mar 26, 2014 · This is a very useful resource for teaching the topic of probability and statistics. Planning & Types of Data. All question papers must be taken in the same series. So I decided to make a worksheet out of it - see below - which I used for the first time this year when teaching skewness (if you like this then please leave me a review on TES!). Hence, they are acquired characteristics e. 2. Past Papers. 2: The 3rd quarter of each year seems to show the lowest bills. Here you will find revision notes, practice questions on topics and exam papers. GCSE STATISTICS 8382/2H Higher Tier Paper 2 Time allowed: 1 hour 45 minutes MATERIALS For this paper you must have: a calculator mathematical instruments a copy of the Data Sheet. Study with Quizlet and memorize flashcards containing terms like 99. Uses of Time Series. sources of secondary data) Calculate the distance between the LOBF of the moving averages and the Q1s, allowing for positive and negative sense. GCSE Statistics: Time Series Graphs . • Know that the predicted value = trend line + seasonal variation. A line of best fit is required when analysing a trend in a time series or to estimate future values. 5-a-day Workbooks Variation is defined as differences between individuals of the same species; Phenotypic variation is the difference in features between individuals of the same species; Phenotypic variation can be caused in two main ways: It can be genetic – controlled entirely by genes (this is called genetic variation) GCSE, A level, pure, mechanics, statistics, discrete – if it’s in a Maths exam, Paul will know about it. Peer assessment task on comparing time series graphs (GCSE exam question) Study with Quizlet and memorize flashcards containing terms like Number in the sample size for each stratum, Capture-recapture formula, Number represented in a pie chart and more. The Collection of Data. The time series graph shows information about the percentages of the people in a village that used the village shop for the years between 1980 and 2010 (a) Describe the trend in the percentage of the people in the village who used the If the standard deviation (or variance) increases but the mean stays the same then the distribution is stretched out horizontally A small standard deviation (small variance) means a tall curve with a narrow centre Want to get a head start before entering Year 11? Book our 2-day online Summer GCSE Refresher courses to fill gaps in knowledge and prepare for your final GCSE year. All questions are from the Edexcel GCSE Statistics specification and include questions on determining skewness from data by inspection and calculation as well as interpreting a distribution of data in terms of skewness. Compact description of data. A collection of 9-1 Maths GCSE Sample and Specimen questions from AQA, OCR, Pearson-Edexcel and WJEC Eduqas. Age range: 14-16. Tools to help you ace your exams, including: past papers, revision notes, and exam-style questions (organised by topic) Past Papers. Last updated. Together with the assessment objectives it provides the framework within which awarding organisations create the detail of the specification. Know that the predicted value = trend line + seasonal variation. Jan 23, 2016 · GCSE Statistics Standard Deviation. Seasonal variation for 1980. Unit 6: Probability • Understand the meaning of the words impossible, certain, very likely, likely, unlikely, possible and evens. Conditional probability and independence Topics in red are specific to GCSE Statistics. How do you calculate Estimated Mean Seasonal Variation for any season? It is the Mean of all the Seasonal Variations for that season. Seasonal variation at a point = actual value – trend value Estimated mean seasonal variation for any season = mean of the seasonal variations for that season Predicted value = trend line value + estimated mean seasonal variation Probability of an event (if possible outcomes are equally likely) • Identify and discuss the significance of seasonal variation by inspection of time series graphs. your accent. Why is this diagram misleading? Nov 4, 2014 · PowerPoint Presentation to introduce the topic of Time Series Analysis and Moving Averages. At the top of the page, write your surname and other names, your centre number, your candidate number and add your signature. 6 Comparative pie charts Quick reminder. 69 1. (2) (b) Describe what the moving averages show about the trend in the numbers of shoes sold in GCSE Statistics Formulae Sheet All the formulae you need to know for GCSE Statistics (9-1) Revision notes on 18. 84 Genetic engineering is changing the genetic material of an organism by removing or altering genes within that organism, or by inserting genes from another organism; The organism receiving the genetic material is said to be ‘genetically modified’, or is described as a ‘transgenic organism’ • Calculate the estimated mean seasonal variation. Here the level of CO 2 at Mauna Loa falls dramatically in the fourth quarter although the data indicates a rising trend Nov 30, 2020 · Seasonality is a characteristic of a time series in which the data experiences regular and predictable changes that recur every calendar year . 06K subscribers. Introduction . The GCSE subject content sets out the knowledge, understanding and skills common to all specifications in GCSE statistics. GCSE Statistics – EDEXCEL Exam Practice; A LEVEL Statistics – AQA Exam Practice Seasonal Variation Help Sheet. Subject: Mathematics. 1 Variation in Biology for the CIE IGCSE Biology syllabus, written by the Biology experts at Save My Exams. GCSE STATISTICS Higher tier Paper 2 H : 2 *02* IB/G/ Jun21 /8382/2H Seasonal variation (1000s) 2019 Q2 . Seasonal variation for 1981. This is your answer. Draw a trend line through moving averages by eye. G. docx Created Date: trends, seasonal variation Exam preparation and practise Past papers in preparation for final exam Pictograms, bar charts, stem and leaf diagrams, line graphs Tally, two-way tables, frequency tables Using the regression equation y = a + bx Notation, characteristics, conditions of suitability Feb 29, 2024 · Exam Questions and mark scheme on Time Series for Edexcel GCSE (9-1) Statistics. Specification Planning resources Teaching resources Assessment resources Key dates A moving average is the average of a number of successive observations. 2020 Q2 . 8%, Two outcomes (success or failure), fixed number of independent trials, fixed probability of success, The same probability for all events. Mark Scheme – General Certificate of Secondary Education Statistics – 43101H – June 2013 3 Glossary for Mark Schemes GCSE examinations are marked in such a way as to award positive achievement wherever possible. 5 12 16. 7 Seasonal Feb 26, 2018 · GCSE Statistics has a Foundation tier (grades 1 – 5) and a Higher tier (grades 4 – 9). GCSE Statistics. 4 and the index number for 2020 is 107. For more teaching and learning support on Statistics our GCSE maths lessons provide step by step support for all GCSE maths concepts. 6 - 6. Nov 26, 2021 · Time series graph and seasonal variation. GCSE; Edexcel; Representing data - Edexcel Time series. In time series data, seasonality refers to the trends that occur at specific regular intervals less than a year, such as weekly, monthly, or quarterly. 5 9 9. There are exam questions sorted by topic, videos and lots of past papers. Questions and model answers on 6. Average seasonal variation is the average of the seasonal effects for the same point in each cycle. 4. Or a town centre restaurant may see higher customer numbers on weekend evenings and lower customer numbers on weekday evenings. Scheme of Learning The scheme of work has been split up into 9 topics, one to be taught each half term through year 10 and the start of year 11. What is the predicted value? The trend line value (as read from trend line on graph) + the estimated mean seasonal variation value. 5 Variation for the Edexcel GCSE Biology: Combined Science syllabus, written by the Biology experts at Save My Exams. It has been written by a highly experienced teacher (of 25+ years), senior examiner and reviser for Maths and Stats GCSE Statistics: Three worksheets on: 1) Comparing time series graphs and then plotting. indd 1 8/29/18 9:38 AM. The number of data points included in each average must cover one complete cycle. . The index number for 2015 is 97. This makes it easier to spot trends in data that varies cyclically or seasonally. iii Collecting data 1 47Describing data 2 Primary and secondary data 75 Seasonal variations Probability Year Quarter Number of Shoes 2010 1 255 2 309 3 285 4 243 2011 1 294 2 330 (a) Calculate the 4-point moving averages for this information. GCSE and A Level Statistics support Analysis of Variance (ANOVA) All resources on this site are free. The seasonal variation can be assumed to be the difference between the actual sales and the trend (three-month moving average) value. The smallest height in the school is 132 cm from Year 7 The greatest height is 187 cm from Year 11 Subtract those to find the range for the school GCSE, A level, pure, mechanics, statistics, discrete – if it’s in a Maths exam, Paul will know about it. The worksheet is fully interactive as it marks itself, offering instant feedback to pupils. Learn vocabulary, terms, and more with flashcards, games, and other study tools. (a) Calculate the range for all the students in the school. Resources to help teaching time series graphs and moving averages for GCSE Statistics. And see how Darwins came up with the theor Feb 29, 2024 · Exam Questions and mark scheme on Skewness for Edexcel GCSE (9-1) Statistics. Unit 6: Probability Start studying GCSE Statistics formulas. The seasonal variation at a point = actual value at that point – value as shown by the trend line Seasonal variation for 1980 148 – 97 = 51 Seasonal variation for 1981 52 – 92 = -40 Population Statistics • population averages • crude birth and death rates Ex 5F Ex 5F, Ex 5G Time Series • moving averages • trend lines • seasonal fluctuation and long term trends • average seasonal variation Ex 5I Ex 5I Ex 5I Ex 5I Measures of Spread (6 hours) Topic Content Text reference Quartiles • Q 1: ¼(n+1)th value, Q Variation is defined as differences between individuals of the same species; Phenotypic variation is the difference in features between individuals of the same species; Phenotypic variation can be caused in two main ways: It can be genetic – controlled entirely by genes (this is called genetic variation) The main topics in GCSE Maths are: Numbers; Algebra Ratio, Proportion and Rates of Change Geometry and Measures; Statistics Probability Statistical Measures Data Visualisation With regular practice of GCSE Maths topic-wise questions and GCSE Maths past pacers, you can easily score high marks. 98 (3 s. 77 1. Study with Quizlet and memorise flashcards containing terms like time series graph (rules and uses), general trend, trend line and others. 57 1. • Use fractions, decimals and percentages to represent probabilities. Mean seasonal variation more. Seasonal variations can be calculated using the additive or multiplicative models. Testing yourself with GCSE Statistics past papers is a great way to identify which topics need more revision, so you can ensure that you are revising as effectively as possible to help you get ready for your GCSE Statistics exam. 1: The 1st quarter of each year seems to show the highest bills. 8382. Seasonal effect at a given data point is the difference between the actual value read from the trend line at that point. Positive correlation is when one quantity increases and the other quantity also increases A change in the inherited characteristics of a population over time through a process of natural selection May 30, 2014 · Whilst teaching S1 I often find myself referring back to my Bibonacci starter (‘remember that CEO? He ruined the mean!’). Plotting moving average points The moving average points are plotted on the same graph as the time series graph. 54. ) Note that the mean does not have to be an actual shoe size (b) Find the median shoe size, The bar chart/table has the data in order already So we just need to find the position of the median This interactive visualisation shows the centre variability at grade 4/C and above or grade 7/A and above for selected GCSE subjects. What is Seasonal Variation? Seasonal variation refers to the predictable fluctuations that occur in a dataset over specific periods, typically corresponding to the seasons of the year. Sep 2, 2019 · Next: Triangular Numbers Practice Questions GCSE Revision Cards. 52 – 92 = -40 GCSE Statistics Formulae Measures of Location and Spread Position of the Median: 1 2 (n + 1)th value The mean: ∑ T J X 360 Mean Seasonal Variation A GCSE Statistics help video to go through the main ideas on calculating moving averages for time series data and how to then plot and draw a trend line to then calculate the mean seasonal GCSE Statistics. The content for statistics GCSE. Showing your method clearly, estimate the price of a computer that completes the task in 3. Moving averages show the general trend and can eliminate seasonal variation. A GCSE Statistics help video to go through the main ideas on calculating moving averages for time series data and how to then plot and draw a trend line to then calculate the mean seasonal variation to predict future values. First draw a line of best fit, by eye. Mean = 8. [Turn over] A H Looking forward, students can then progress to additional Statistics worksheets, for example the mean, median, mode and range worksheet, the frequency graphs worksheet, or the line graphs worksheet. GCSE Statistics - Seasonal variation and mean seasonal variation. The seasonal variation at a point = actual value at that point – value as shown by the trend line. mean Study with Quizlet and memorize flashcards containing terms like 99. 10 Variance and standard deviation 6. This chart shows the types of dance performed by 12 dancers. Jul 4, 2021 · Seasonal Variation Seasonal Variation can be seen when a particular season repeats its pattern each time frame E. 60 113 reviews. g. Ideal as a homework sheet or as a starter/plenary activity. Past papers; Trend and seasonal variation 0 10 20 30 40 50 60 70 80 90 7 7. Planning an Enquiry. Here’s a set of revision notes that you might also find useful when reviewing topics but remember that to revise Statistics, you need to do Statistics: Here is a full list of topics for Statistics: Unit 1 - The collection of data Topic questions, past papers, model answers & revision notes for the Edexcel GCSE Statistics specification. GCSE Statistics Formulae Measures of Location and Spread Position of the Median: 1 2 (n + 1)th value The mean: ∑ T J The mean from a frequency table: ∑ ∑ The weighted Mean: ∑( T 𝑋 𝑖 ℎ P) ∑ 𝑖 ℎ P O √ The geometric mean: 𝑛1 𝑋 2 𝑋… J The Range: Max - Min The Interquartile Range: Q 3 – Q 1 Scatter Diagrams & Correlation Basics What is correlation? Correlation describes how two quantities are related to each other. Time series are used in a variety of sectors including economics, finance, healthcare, meteorology and more. Maybe because this is Winter time when people use more heating E. b = k/a² when a = 3, b = 1 \ 1 = k/3² \ k = 9 average worked out for a given number of successive observations Plotted at the midpoints of the time intervals they cover Do not join up the points 1 GCSE Statistics Time Series 2 The variations either side of a trend line are called seasonal variations. Our extensive collection of resources is the perfect tool for students aiming to ace their exams and for teachers seeking reliable resources to support their students' learning journey. We have used this opportunity of curriculum change to redesign a qualification which will enable your students to acquire transferable skills to support them in progressing beyond GCSE in a range of subjects. 1. The evaluation of seasonal variations is made by determining an index of seasonal variation, called the seasonal index. If a time series shows seasonal data (seasonality), it is far more accurate to draw a moving average than a line of best fit. Calculate the estimated mean seasonal variation. 5 10 10. Feel free to buy me a cup to tea by clicking here. 81 1. (d) Estimate the number of days of work likely to be lost in the first quarter of 2004. Module 11 GCSE Statistics Time: 3 – 4 hours GCSE tier: Higher Contents: Probability OBJECTIVES: • Understand the meaning of the words event and outcome • Understand the meaning of the words impossible, certain, highly likely, likely, unlikely, possible, evens Variation is defined as differences between individuals of the same species; Phenotypic variation is the difference in features between individuals of the same species; Phenotypic variation can be caused in two main ways: It can be genetic – controlled entirely by genes (this is called genetic variation) Aug 31, 2013 · Moving averages tend to reduce the amount of variation present in a time series, leaving only the trend. In these examples, k is known as the constant of variation. Study with Quizlet and memorize flashcards containing terms like What is a time series graph?, 2 types of trends that can be identified, Order of processes with time series and more. and more. Subscribed. e. The content for statistics GCSE 3 Introduction 3 Aims and objectives 3 Subject content 3 Overview 3 Detailed subject content 4 Appendix 1 - formulae 9 Foundation tier 9 Higher tier 10 Appendix 2 - numerical skills required for GCSE statistics 14 Integers, fractions, decimals and percentages 14 Structure and calculation 14 Measures and accuracy 14 Identify seasonal variation on a time series graph. Aug 8, 2017 · This video was made for GCSE Statistics students and is a comprehensive exploration of moving averages. Any predictable change or pattern in a time series Range The Range Help Sheet CorbettMaths Videos: Averages: range Video 57 Practice Questions Textbook Exercise Quartiles Raw Data Help Sheet Frequency Table Help Sheet Interpolation Help Sheet Inter Quartile Range Help Sheet Percentiles Percentiles and Deciles Help Sheet Variance and Standard Deviation Formula Help Sheet Raw Data Help Sheet Frequency Table Help Sheet Best Measure… community, including users of statistics within higher education and students of GCSE Statistics. 1. The graph is a bar chart with each possible outcome going to the same height (the probability of it happening). • Draw a trend line based on moving average. As the Earth orbits the Sun, different parts of the planet receive varying amounts of sunlight, resulting in changes in temperature and weather patterns. 2. Foundation Qs - Q1 ,Q2, Q3, Q4, Q6 Higher Qs - Q5, Q7 , Q8, Q9 The variations either side of a trend line are called seasonal variations. The base year for calculating index numbers for thingummies is 2012. Students must take two question papers at the same tier. Mean of all seasonal variations for that season. Data is represented in many different forms. Environmental variation is the differences in phenotype causes by the environment. 5 8 8. A student taking Foundation tier assessments will be awarded a grade within the range of 1 to 5. Estimated Mean Seasonal Variation. Types of Data. Contains examples to aid student understanding and brief exercise to cons GCSE Statistics Formulae Measures of Location and Spread Position of the Median: 1 2 (n + 1)th value The mean: ∑ T J X 360 The mean from a frequency table: ∑ ∑ Linear Interpolation of the Median 𝐿+ J 2 − T S L = lower bound of class containing median n = total number of values Nov 11, 2014 · set of PowerPoint presentations for statistics: data collection, dotplots, stemplots, ogive, frequency distribution table, histogram, quartiles, boxplot, box-and-whi This GCSE Statistics resource provides engaging and innovative material to aid learners taking either the foundation or higher syllabus options. Seasonal adjustments can be made to remove the effects of seasonal variation and better identify the trend. Aims and objectives . Seasonal Variation Standard Deviation Standardising Data Two Way Tables Microsoft Word - Subject Guide GCSE Statistics. [3 marks] Jun 27, 2019 · explore geographical variation at the regional level, we fitted a fixed effects Poisson model (as there was no evidence of overdispersion) to the regional count data. The powerpoints are for GCSE maths with extension material for GCSE Statistics 4. We used robust SEs and expressed the rate in terms of region, year and harmonic functions capturing seasonal variations in weeks (see box 1). AQA GCSE Statistics:Past Papers. Answers. Data Collection – types of data, populations and sampling, hypotheses and designing investigations Representing and Processing Data – frequency tables, two way tables, bar charts, pie charts, stem and leaf diagrams, cumulative frequency diagrams, box plots, histograms, population pyramids, line Feb 22, 2018 · GCSE Statistics: Three worksheets on: 1) Comparing time series graphs and then plotting. The second and third ppt moving averages and seasonal variations with the word documents are targetted at GCSE statistics Creative Commons "Sharealike" Study with Quizlet and memorise flashcards containing terms like seasonal variation at a point, predicted value formula, index number formula and others. 71 1. 148 – 97 = 51. Divide this by the number of Q1s. 8 Variation for the Edexcel GCSE Biology syllabus, written by the Biology experts at Save My Exams. 63 1. Now we have established the variations, it is clear that they are operating on a repeating cycle (-450 then -900 then +1350). 2) Calculating moving averages and plotting. Usually this will mean one complete year. a measure of spread). f. 3. indd 104. For further explanation of these graphs, click on the questions and and answers tab, or read the reports on GCSE centre variability in previous years. Thus, for GCSE Mathematics papers, marks are awarded under various categories. It measures how the data is spread out relative to the mean Seasonal Variation Standard Deviation Standardising Data Two Way Tables Microsoft Word - Subject Guide GCSE Statistics. Peer assessment task on comparing time series graphs (GCSE exam question) GCSE Statistics. benaezki pbgpgwu avkozpt czol ihped sbuaut yhdpd fegtf qgmazke bewqaqw