13. An organizational psychologist asks 20 employees in a company to rate their job satisfaction on a 5-point scale from 1 = very unsatisfied to 5 = very satisfied.

The ratings are as follows:

3, 2, 3, 4, 1, 3, 3, 4, 5, 2, 3, 5, 2, 3, 3, 4, 1, 3, 2, 4 Make

(a) a frequency table and

(b) a histogram. Then

(c) describe the general shape of the distribution.