For a dataset with five values (65, 72, 80, 88, 95), the relative frequency for the value 65 is 5%, the relative frequency for the value 72 is 15%, the relative frequency for the value 80 is 20%, the relative frequency for the value 88 is 30%, and the relative frequency for the value 95 is 30%. What is the cumulative relative frequency for the value 80?
A) 15%
B) 20%
C) 40%
D) 70%
E) 100%

Question

Quizplus · Accepted Answer

The cumulative relative frequency for a value in a dataset is the sum of its own relative frequency and all the relative frequencies of the values before it. For the value 80, this is 5% (for 65) + 15% (for 72) + 20% (for 80) = 40%.

For a Dataset with Five Values (65, 72, 80, 88