Solved: Graphical Analysis In Exercise, use the frequency

Chapter 2, Problem 20E

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QUESTION:

Use the frequency histogram to

(a) determine the number of classes.

(b) estimate the frequency of the class with the least frequency.

(c) estimate the frequency of the class with the greatest frequency.

(d) determine the class width.

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Questions & Answers

QUESTION:

Use the frequency histogram to

(a) determine the number of classes.

(b) estimate the frequency of the class with the least frequency.

(c) estimate the frequency of the class with the greatest frequency.

(d) determine the class width.

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ANSWER:

Step 1 of 4

A frequency histogram typically consists of data grouped into classes or intervals, along with the frequency (or count) of data points that fall within each class.

a)  The number of classes is the same as the number of bars in the histogram.

The given frequency histogram contains 7 bars, so there are 7 classes.

Thus, the number of classes is 7.

 

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