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Chapter 1: Q 42. (page 43)

Phone numbers the dot-plot below displays the last digit of 100phone numbers chosen at random from a phone book. Describe the shape of the distribution. Does this shape make sense to you? Explain.

Short Answer

Expert verified

Shape is not smooth that is neither symmetric nor skewed.

Step by step solution

01

Given information

The graph :

02

Concept

The shape of the distribution is described by its number of peaks and its possession of symmetry.

03

Explanation

Because of its uneven shape, the dot-plot that depicts the final digit of 100 phone numbers chosen at random from a phonebook is asymmetrically distributed. The shape is not smooth, symmetrical, or skewed in any way. The distribution of last digit numbers is almost unequal, with the last digits 4 and 7 being the most common.

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