Refer to the following distribution of ages: For the distribution of ages just shown, what is the relative class frequency for the lowest class?
A).50
B).18
C).20
D).10

Question

Refer to the following distribution of ages:  For the distribution of ages just shown, what is the relative class frequency for the lowest class?
A).50 
B).18 
C).20 
D).10

Quizplus · Accepted Answer

The lowest class is the one that ranges from 10 to 19 years old. There are 5 individuals in this class. To find the relative class frequency, we need to divide the frequency of the lowest class by the total frequency. The total frequency is the sum of all the frequencies, which is 25 in this case. Therefore, the relative class frequency for the lowest class is:

Relative class frequency = frequency of lowest class / total frequency
Relative class frequency = 5 / 25
Relative class frequency = 0.2 or 20%

Therefore, the correct answer is C.

Refer to the Following Distribution of Ages: for the Distribution