The following box plot represents data on the GPA of 500 students at a high school. If you are asked to compare box plots (for example between two classes) you should mention at least two things – one about averages, ie. GCSE (1 – 9) Box Plots Name: _____ Instructions • Use black ink or ball-point pen. In other words, it might help you understand a boxplot. Match. I read an interesting idea here that I’d never thought of before: “One way to help you interpret box plots is to imagine that the way a data set looks as a histogram is something like a mountain viewed from ground level and a box and whisker diagram is something like a contour map of that mountain as viewed from above”. 12th May 2017. Making a box plot itself is one thing; understanding the do’s and (especially) the don’ts of interpreting box plots is a whole other story. Comparing Box Plots Quizzes: Comparing Box Plots; Question. GCSE Maths Higher Revision Workbook. 2. The reason why I am showing you this image is that looking at a statistical distribution is more commonplace than looking at a box plot. drawing histograms. Box plots are particularly good for comparing different distributions at a glance. 3) Draw a box plot from a cumulative frequency diagram. Square Drawing a box plot from a cumulative frequency graph. Box Plots. Comparing Box and Whisker Plots - Multiple choice questions. 6 comments: Compare the box plots. If you are asked to compare box plots (for example between two classes) you should mention at least two things – one about averages, ie. Compare the distribution of the marks in the Maths test and marks in the Maths test. ... Labels: Box Plots, GCSE, Graphs, KS3, Resources, Statistics. Data sets can be compared using averages and measures of spread. A Box plot can also be drawn from a Cumulative Frequency diagram. The diagram is made up of a "box", which lies between the upper and lower quartiles. When working on statistics problems, you probably will have occasion to compare two box plots. PLEASE NOTE: This navigation system is still under development. The lowest and highest value make the ‘whiskers’. Write. (a) On the grid, draw a box plot to show the information in the table. interpreting Histograms. We can use the box and whisker plots above to compare the scores of boys and girls in a test. Click on them to play them Section 2: A word example of comparing two box and whisker plots By Consumer Dummies . (b) On the lower half of the grid above, draw a box plot for the information in the table. The reason why I am showing you this image is that looking at a statistical distribution is more commonplace than looking at a box plot. Make sure you are happy with the following topics before continuing. Back to Edexcel Maths Higher November 2018 Paper 1 Home Q9: Answers – Paper 1 – November 2018 Preview and details Files included (2) ppt, 3 MB. Cumulative frequency diagrams Hegarty Maths goes over how to construct cumulative frequency diagrams and looks at typical GCSE questions and how to answer them. It looks at what they are, how to draw them and how to interpret them. The minimum and maximum values of the box plot are where the cumulative frequency begins and ends. I will be working hard over the next couple of weeks to upload relevant resources and activate these links. Tes Global Ltd is Flashcards. Credit: Illustration by Ryan Sneed Sample questions What is […] If you are asked to compare box plots (for example between two classes) you should mention at least two things – one about averages, ie median, and one about spread, ie IQR or range. Explain why the interquartile range may be a better measure of spread than the range. Box Plots /1 The box plots show student results in Maths and Science test scores. Videos, worksheets, 5-a-day and much more To find the lower quartile, there are 11 numbers, so \(\frac{11 + 1}{4}\) = 3rd number. graph is straightforward as long as the median and quartiles have been found. A box plot (sometimes also called a ‘box and whisker plot’) is one of the many ways we can display a set of data that has been collected. One morning, samples of 50 customers were taken at supermarkets A, B, C and D. The box plots represent the results. Comparing box and whisker diagrams in a meaningful, relevant way is something that higher GCSE students find notoriously difficult. Box plots can be created from a list of numbers by ordering the numbers and finding the median and lower and upper quartiles. A box plot displays information about the range, the median and the quartiles. Drawing a box plot from a list of numbers, To find the lower quartile, there are 11 numbers, so. Shape of data distributions. Comparing Box and Whisker Plots - Multiple choice questions. median, and … The lower quartile will be the 3rd number and the upper quartile is the 9th number. The girl’s median is 1 more than this which suggests the girls’ have done better on average Further Maths; Practice Papers; Conundrums; Class Quizzes; Blog; About; Revision Cards; Books; May 15, 2013 August 21, 2019 corbettmaths. GCSE Maths from Scratch 9.04 Comparing 2 Sets of Data using the Mean and Range - Jack Brown. Free. Taller boxes imply more variable data. Read more. About this resource. 2) Give you important pieces of information to draw a box plot. Powered by Create your own unique website with customizable templates. Comparing Box Plots. To draw a box plot, the following information is needed: Box plots can be created from a list of numbers by ordering the numbers and finding the median and lower and upper quartiles. View US version . Cumulative Frequency, Box Plots and Comparing Distributions Revision Videos. = 3rd number. 4) Compare distributions by comparing 2 box plots. Box_and_whisker_plots LESSON. From the Blog. Arrow down to Xlist: Press 2nd 1 for L1. Sign in, choose your GCSE subjects and see content that's tailored for you. (c) Hunter thinks that the total amount of time spend by all of the customers visiting the indoor restaurant is greater than the total amount of time spend by all of the customers visiting the open-air restaurant. Info. Comparing Two Box Plots; Comparing Two Box Plots. The Corbettmaths Textbook Exercise on Box Plots. While the portion covering lower quartile, median and upper quartile appears as a box, minimum and maximum data points show up as whiskers at the two ends (see figure below). Speed Time GRaphs. Box plots are a huge issue. worksheet - box and whisker film. It looks at what they are, how to draw them and how to interpret them. Comparing Box Plots Video Videos; box and whisker; comparing box plots; Post navigation. That’s something to look for when comparing box plots, especially when the medians are similar. Obvious differences between box plots – see examples (1) and (2), (1) and (3), or (2) and (4). PLAY. The image above is a comparison of a boxplot of a nearly normal distribution and the probability density function (pdf) for a normal distribution. Example 1: Sameena recorded the times, in minutes, some girls took to do a jigsaw puzzle. As this blogger says, “a box plot is a simple yet powerful tool, with a truly great design - a universally beautiful thing that stands the test of time”. A box plot shows a visual representation of the median and quartiles of a set of data. The diagram shows the quartiles of the data, using these as an indication of the spread. Questions that may be asked about box plots: 1) Give you a list to draw a box plot. 0 20 40 60 80 100 Maths Science 1. Emphasise that GCSE exams always seem touse a number of items 1 less than a multiple of 4. A box plot. Box plots are particularly good for comparing different distributions at a glance. *A video for a quick intro to box plots or as a revision aid. What is the lowest mark in the Science test? From working out the cumulative frequency to constructing a box plot to then comparing two data sets, its all covered in these videos. Compare the distribution of amount spent in 2014 and 2015. The median can also be indicated by dividing the box into two. This page has two main sections: Section 1: Two videos which we have created talking through box and whisker plots. Comparing data sets. The box plot below shows the distribution of times the girls took to complete the puzzle. Comparison 1: The Boy’s Median is 11. Comments such as “they have a bigger interquartile range” without knowing what that means, or worse still “they have a high interquartile range, so they are taller”, are all too prevalent. Home Economics: Food and Nutrition (CCEA). Any obvious difference between box plots for comparative groups is worthy of further investigation in the Items at a Glance reports. This resource is designed for UK teachers. • Answer the questions in the spaces provided – there may be more space than you need. a. Box plots. Wider ranges (whisker length, box size) indicate more variable data. Test. (2 Marks) The box plot below shows the amount spent by people over the Christmas period in 2015. b. (b) Compare the distribution of girls' times and the boys' times. Spell. The example box plot below shows the distribution of ages of 100 tenants. They show more information about the data than … Drawing these points onto a number line will give the following box plot. 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