4: The following frequency distribution shows sample of 50 starting salaries for
business in 100 Birr per month.
Salaries per month
in 100 Birr
Number of
Employees
32.8 – 34.3
34.4 – 35.9
36.0 – 37.5
37.6 – 39.1
39.2 – 40.7
40.8 – 42.3
42.4 – 43.9 frequency
3
8
11
9
9
6
4
Total 50
a) How many employees salary is from 3440 up to 4070 Birr?
b) What percent of the employee’s salary is below 3,755 Birr?
c) What is the representative salary for the fourth group?
d) What is the width of the third class?