SCENARIO 2-5
The following are the duration in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier.

-Referring to Scenario 2-5,if 100 calls were randomly sampled,how many calls lasted 15 minutes or longer?
A)10
B)14
C)26
D)74

Question

SCENARIO 2-5
The following are the duration in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier.

-Referring to Scenario 2-5,if 100 calls were randomly sampled,how many calls lasted 15 minutes or longer? 
A)10 
B)14 
C)26 
D)74

Quizplus · Accepted Answer

The problem implies that 26% of the calls lasted 15 minutes or longer. Therefore, if 100 calls were sampled, 26 of them would be expected to last 15 minutes or longer.

SCENARIO 2-5 The Following Are the Duration in Minutes of a Sample