Chapter 2, Problem 1CQQ

To determine

To find: The class width for the frequency distribution.

Answer to Problem 1CQQ

The class width for each class is 1.00.

Explanation of Solution

Given info:

The data shows the frequency distribution for the weights (lb) of discarded textile items. Also, first two class intervals are 0.00-0.99 and 1.00-1.99.

Calculation:

Class width:

The class width is distance between the two successive lower limits of the class intervals.

The formula for class width is,

$\text{Class width}=\text{Second lower class limit}-\text{First lower class limit}$

Substitute 1.00 for “Second lower class limit” and 0.00 for “First lower class limit”

$\begin{array}{c}\text{Class width}=1.0\text{0}-0.00\\ =1.00\end{array}$

Thus, the class width for each class is 1.00