Below is a frequency distribution of the number of days absent from school in a group of 25 fifth-grade students.
What is the cumulative relative frequency for 7 days absent?
A)0
B).87
C).96
D)24.0

Question

Below is a frequency distribution of the number of days absent from school in a group of 25 fifth-grade students. 
What is the cumulative relative frequency for 7 days absent?
A)0 
B).87 
C).96 
D)24.0

Quizplus · Accepted Answer

The cumulative relative frequency for 7 days absent is the sum of the relative frequencies for all values less than or equal to 7. From the frequency distribution, we can see that the cumulative frequency for values less than or equal to 7 is 24.0, and the total sample size is 25. Therefore, the cumulative relative frequency for 7 days absent is 24.0/25, which simplifies to 0.96. Thus, the best choice is C, as it correctly gives the cumulative relative frequency for 7 days absent.

Below Is a Frequency Distribution of the Number of Days