Exhibit 2-1
The number of hours worked (per week) by 400 statistics students are shown below.
Number of Hours Frequency
0 - 9 20
10 - 19 80
20 - 29 200
30 - 39 100
a. is 9
b. is 10
c. is 39, which is: the largest value minus the smallest value or 39 - 0 = 39
d. varies from class to class
Answer: b. is 10
The number of hours worked (per week) by 400 statistics students are shown below.
Number of Hours Frequency
0 - 9 20
10 - 19 80
20 - 29 200
30 - 39 100
Refer to Exhibit 2-1. The class width for this distribution
a. is 9
b. is 10
c. is 39, which is: the largest value minus the smallest value or 39 - 0 = 39
d. varies from class to class
Answer: b. is 10
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.