Q.2.70

Question

Use cutpoint grouping with a first-class midpoint of 0.5 and a class width of 1.

Step-by-Step Solution

Verified
Answer

a). The frequency distribution,

b). Relative frequency distribution,

c). The frequency histogram,

1Part (a) Step 1: Given Information

Given data:

2Part (a) Step 2: Explanation

The frequency distribution for the given data is,

3Part (b) Step 1: Given Information

Given data:

4Part (b) Step 2: Explanation

Relative frequency distribution is 

5Part (c) Step 1: Given Information

Given data:

6Part (c) Step 2: Explanation

The bars must be the same width and constrained by the lower class limitations.

The frequency must be reflected in the height of the bars.

The frequency distribution is represented by the histogram below: