e spent for preparation of exams by a class of statistics students before one week of examination data. The maximum time of study time was 47 hours and minimum time was 1 hour. If we want to construct a frequency table for the data with six classes, find the width of the class interval(round to nearest integer)

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Q: how can i mmake a frequency table?

A: A frequency table has to be made.

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Q: During one shift, the express lane clerk recorded how many times customers violated the "10 items or…

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A: K = 0.47

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A: It is given that a set of scores ranges from 72 to 28.