Exhibit 2-1
The numbers of hours worked (per week)by 400 statistics students are shown below.

-Refer to Exhibit 2-1.The percentage of students working 19 hours or less is
A)20%
B)25%
C)75%
D)80%

Question

Exhibit 2-1
The numbers of hours worked (per week)by 400 statistics students are shown below.
 
-Refer to Exhibit 2-1.The percentage of students working 19 hours or less is
A)20% 
B)25% 
C)75% 
D)80%

Quizplus · Accepted Answer

We can see from the frequency distribution that the cumulative percentage of students working 19 hours or less is 25%. This means that 25% of the students worked 19 hours or less per week. Therefore, the best choice is B) 25%.

Exhibit 2-1 The Numbers of Hours Worked (Per Week)by 400 Statistics Students