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

-Refer to Exhibit 2-1.The cumulative relative frequency for the class of 20 - 29
A)is 300
B)is 0.25
C)is 0.75
D)is 0.5

Question

Exhibit 2-1
The numbers of hours worked (per week)by 400 statistics students are shown below.
 
-Refer to Exhibit 2-1.The cumulative relative frequency for the class of 20 - 29
A)is 300 
B)is 0.25 
C)is 0.75 
D)is 0.5

Quizplus · Accepted Answer

Cumulative relative frequency is the proportion of data points that are less than or equal to a particular class. The cumulative relative frequency for the class of 20-29 is 0.75, which means that 75% of the 400 statistics students worked 20 or fewer hours per week.

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