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 80
b. is 100
c. is 180
d. is 300
Answer: b. is 100
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 number of students working 19 hours or less
a. is 80
b. is 100
c. is 180
d. is 300
Answer: b. is 100
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.