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Box & Whisker Plots

Box & Whisker Plots. Statistics Unit. Box & Whisker Plot. Gives a visual summary of a set of data using a 5 number summary and outliers. 5 number summary: Min Max UQ LQ Median. 1-6. Box-and-Whisker Plots.

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Box & Whisker Plots

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  1. Box & Whisker Plots Statistics Unit

  2. Box & Whisker Plot • Gives a visual summary of a set of data using a 5 number summary and outliers. • 5 number summary: • Min • Max • UQ • LQ • Median

  3. 1-6 Box-and-Whisker Plots 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Course 2 Additional Example 1: Reading a Box-and-Whisker Plot Use the box-and-whisker plot of students enrolled in craft classes to answer each question. A. What is the largest class size? The largest data value is represented by the upper extreme on the box-and whisker plot. This value is 25. B. What is the range of the class sizes? The range is the difference between the lower extreme and the upper extreme : 25 – 10 = 15. C. About what fraction of the values are greater than 20? One of the four parts of the box-and-whisker plot falls above 20. This means about one-fourth of the values are greater than 20.

  4. 1-6 Box-and-Whisker Plots 1 2 Course 2 Try This: Example 1 Use the box-and-whisker plot of the amount of money spent on a pair of shoes to answer each question. 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 A. What was the highest amount of money spent on a pair of shoes? 41 B. What is the range of shoe prices? The range is the difference between the lower extreme and the upper extreme : 41 – 27 = 14. C. What fraction of shoes cost more than $35?

  5. Box & Whisker Plot Use the Atlanta Hawks Roster to make a Box & Whisker Plot.

  6. Box & Whisker Plot Use the Atlanta Hawks Roster to make a Box & Whisker Plot. Player weight

  7. Box & Whisker Plot To make a box plot, organize the data arranging the data in order least to greatest. 175 250 255 260 275 237 240 247 218 181 225 192 212 215 225

  8. Box & Whisker Plot Find the median of the data. 175 250 255 260 275 237 240 247 218 181 225 192 212 215 225 This divides the data in half!

  9. Box & Whisker Plot Find the median of the lower half. 175 250 255 260 275 237 240 247 218 181 225 192 212 215 225 This is the lower quartile (LQ)!

  10. Box & Whisker Plot Find the median of the upper half. 175 250 255 260 275 237 240 247 218 181 225 192 212 215 225 This is the upper quartile (UQ)!

  11. Box & Whisker Plot Next, find the lower (min) and upper (max) extremes. This simply means the lowest data, 175, and the highest data, 275.Let’s organize all 5 pieces of data together so we can see them. 175 250 255 260 275 237 240 247 218 181 225 192 212 215 225

  12. Box & Whisker Plot Now, use the data to make a box and whisker plot.

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