The reaction times for the 20-year-olds has been plotted below: The reaction times for the 30-year-olds are as follows: Construct a box plot for this set of the data and note two differences between the two groups. GCSE Revision Cards. Reload document Box Plots Notes Practice Worksheet Answer Key Box Whisker Plots Data Displays Guided Notes In 2020 Practices Worksheets Box Plots Guided Practice . Compare the spreads of the box plots. Test Scores (as %) for 6th Period . Since there are 100 values in total, the lower quartile is the 25th value (since 25 is \frac{1}{4} of 100. Find and describe the lower and upper quartiles. Thank You, © 2021 DSoftschools.com. Directions: These questions deal with box and whisker plots. Browse our pre-made printable worksheets library with a variety of activities and quizzes for all K-12 levels. The Medians, Quartiles & Boxplots worksheet, along with actual SQA Exam Questions, are highly recommended. Displaying top 8 worksheets found for - Box Plots. Make sure you are happy with the following topics before continuing. 11,12,12,13,14,14,14,16,18 Practice Questions; Post navigation. Free Worksheets for Teachers and Students. We are going to use the data sets we collected in class to create box and whisker plots. Word problems are also included. Keep the interest of learners alive with this pdf worksheet on outliers. View all Products, Not sure what you're looking for? To find the highest salaries, we need to find what 100 on the cumulative frequency axis corresponds to. A box and whisker plot is a diagram that displays the median, quartiles, and extremes of a set of data on a number line to visually portray the distribution of the data. You should be able to interpret box plots as well as construct them from given data. Construct a box plot for the following data set. (Total for question 1 is 2 marks) Minimum Lower Quartile Median Upper Quartile Maximum 11 28 37 42 51 2 The table shows some information about the weights, in grams, of some potatoes. Donât panic, these numbers are easy to understand. Interpreting a Box & Whisker Plot For questions 1 â 5, refer to the box & whisker graph below which shows the test results of a math class. Questions : 1. On the cumulative frequency graph, we need to locate 25 on the cumulative frequency axis and find the corresponding weight in kilograms. These printable exercises cater to the learning requirements of students of grade 6 through high school. Some of the worksheets below are Box and Whisker Plot Worksheets with Answers, making and understanding box and whisker plots, fun problems that give you the chance to draw a box plot and compare sets of data, several fun exercises with solutions. Here’s an example of a box plot for data collected on people’s shoe sizes. Interquartile range (or IQR) is another measure of spread of data. Box plots worksheet A worksheet consisting of two GCSE past paper questions on interpreting box ⦠The range is one way of measuring the spread of the data, for more information head over here (Mean Median Mode and Range revision). Two page worksheet. On the cumulative frequency graph, we need to locate 50 on the cumulative frequency axis and find the corresponding weight in kilograms. In a hurry? (b) Compare the distributions of the girlsâ times and the boysâ times. TRUE. Find the Median, (Q2) the Lower or First Quartile (Q1) and Upper or Third Quartile Your completed box plot should be similar to the below: Question 3: The reaction times (in milliseconds) of a group of 20-year-olds and a group of 30-year-olds were tested. 4. Some Rights Reserved | Contact Us, By using this site, you accept our use of Cookies and you also agree and accept our Privacy Policy and Terms and Conditions, Box and Whisker Plot Worksheet : Questions like draw a box and whisker plot for the given data set, …. The following are facts about the data recorded on the students’ scores. On the cumulative frequency graph, we need to locate 25 on the cumulative frequency axis and find the corresponding salary. Find the minimum and maximum scores. The 50th value for Welsh Bank corresponds to a salary of £52,000, and the 50th value for the Bank of Finland corresponds to a salary of £62,000. Taking too long? 2. Taking too long? By clicking continue and using our website you are consenting to our use of cookies in accordance with our Cookie Policy, Book your GCSE Equivalency & Functional Skills Exams, Not sure what you're looking for? Click here for Answers . They will read and interpret box and whisker plots. (a) On the grid, draw a box plot to show the information in the table. The box plot tells you some important pieces of information: The lowest value, highest value, median and quartiles. Choose 2 questions from the data ⦠Taking too long? Creating a Box Plot on a Numberline : 7 exercises with solutions. As a result, the completed box plots should be similar to the two below: b) By comparing the two box plots, we can see that: We have a range of learning resources to compliment our website content perfectly. Get familiarized on creating box plots and stay a step ahead in the classroom with this free printable worksheet. Which group has the greater variability in the bottom 50% of shopping times ? Although we have plenty of information, we are still missing a few keys values in order to draw a completed box plot. Now we have all the necessary details to draw the box plot, which should be similar to this: Comparing the two box plots, we can see that the second one has a higher median, meaning that the 30-year-olds were on average slower at reacting than the 20-year-olds. Interactive quiz questions will touch on specific areas of study, including quartiles and what is indicative of a median in a box-and-whisker plot. Box and whisker plots can be used to compare different data sets. (Total for question 2 is 2 marks) Range Lower Quartile Median Upper Quartile Maximum Creating and Interpreting a Box-and-Whisker Plot. When comparing box plots you want to look at the median and interquartile range as your first two comparisons. The median time is greater for the year 9 class. These printable exercises cater to the learning requirements of students of grade 6 through high school. Now we have all the information we need to draw a box plot. These numbers are median, upper and lower quartile, minimum and maximum data value (extremes). Make sure you are happy with the following topics before continuing. As a result, the completed box plot should be similar to the one below: Question 5: The cumulative frequency graph below shows the salaries of 100 employees who work for Welsh Bank (black) and 100 employees who work for the Bank of Finland (blue). The 25th value for Welsh Bank corresponds to a salary of £44,000, and the 25th value for the Bank of Finland corresponds to a salary of £50,000. The 25th value has a weight of 84 kilograms. Box Plots questions for your custom printable tests and worksheets. Fun problems that give you the chance to draw a box plot and compare sets of data. What was the high score on the test? 6 9 10 12 14 15 20. Name _____ Date _____ Tons of Free Math Worksheets at: © www.mathworksheetsland.com Topic: Box and Whisker Plot- Worksheet 1 ANSWERS 1. One advantage is that worksheets are very ⦠We know that there are 100 values in total, so the median is the 50th value (since 50 is half of 100). First, we will go through what all the bits mean. This is the page for free maths worksheets and resources about box plots, reading them and plotting them. Primary Study Cards. Cumulative Frequency and Box Plot Practice Questions Click here for Questions . So, reading from the box plot we get: \text{Interquartile range } = Q_3 - Q_1 = 10 - 4 = 6. Find the interquartile range. Previous Inequalities Practice Questions. The 75th value has a weight of 101 kilograms. The second page asks students to plot the information worked out before on a box and whisker plot. What was the high score on the test? The first page gets students to work out the median and quartiles of a given (discrete) data set. They are used to show distribution of data based on a five number summary (minimum, first quartile Q1, median Q2, third quartile Q3, and maximum). From the graph, we can see that the lower quartile is 10.5 and the upper quartile is 12.4, so: \text{Interquartile range } = 12.4 - 10.5 = 1.9\text{ seconds}. Questions : 1. Displaying top 8 worksheets found for - Box And Whisker Plot 1. b) From the box plots, make 2 comparisons between the data sets. For questions 1 â 6, refer to the box & whisker graph below which shows the test results of a math class. Note: Finding the IQR is a very common question so learn how to do it; it is the preferred measure of spread. Find the median and describe what it means for the data. Taking too long? Find the range. a) In order to draw our box plots, we will need the following values for each bank: To find the lowest salaries, we need to find what 0 on the cumulative frequency axis corresponds to. Please note that you can also find the download button below each document. A box and whisker plot (also known as a box plot) is a graph that represents visually data from a five-number summary. 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