Consider the relative frequency distribution given below: There were 60 numbers in the data set. How many numbers were in the interval 40-under 60?
A) 30
B) 50
C) 18
D) 12
E) 15

Question

Consider the relative frequency distribution given below:  There were 60 numbers in the data set. How many numbers were in the interval 40-under 60?
A) 30 
B) 50 
C) 18 
D) 12 
E) 15

Quizplus · Accepted Answer

From the given relative frequency distribution, we can see that the cumulative frequency of the interval 40-under 60 is 0.3. This means that 30% of the 60 numbers in the data set fall in this interval. Therefore, the number of numbers in the interval 40-under 60 is:

0.3 * 60 = 18

Hence, the correct choice is C.

Consider the Relative Frequency Distribution Given Below: There Were