Fifteen cyclists were each asked the number of miles they biked last week. Their responses are given below. Number of miles 14 13 14 10 12 17 15 20 11 9 • 3 17 18 14 9 (a) Complete the grouped frequency distribution for the data. (Note that the class width is 5.) Number of miles 0.5-5.5 5.5-10.5 10.5-15.5 15.5-20.5 X Frequency 0 0 S (b) Construct a histógram for the data. Frequency 8- 7- 6- 5+ 4- 3- 2 1. 0 0.5 5.5 10.5 Number of miles 15.5 20.5

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A:

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A: It is an important part of statistics. It is widely used.

Q: None

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A: Consider the random variable x defines the observation.