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Home > CC3 > Chapter 6 > Lesson 6.2.6 > Problem 6-105

6-105.

Lucy and Marissa each designed a box plot to represent this data set:

Their plots are shown below. Which plot is scaled correctly and why? Explain the mistakes in the incorrect plot.  

  1. Box Plot: x axis with marks labeled as follow: 0, 5, 10, 15, 20, 25, 30, 35, 40. Left whisker: 16 to 18.5. Box: 18.5 to 29.5, vertical line at 25. Right whisker: 29.5 to 35.

  1. Box Plot: x axis with marks labeled as follow: 16, 18, 19, 19, 25, 26, 27, 32, 35. Left whisker: 16 to 18. Box: 18 to 26.5, vertical line at 25. Right whisker: 26.5 to 35.

Look carefully at each number line. Are they numbered and spaced correctly?

Part (a) is done correctly. Explain why part (a) is correct and part (b) is incorrect.

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