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, _______ of them would have
Lasted at least 15 minutes but less than 20 minutes
A) 6
B) 8
C) 10
D) 16

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, _______ of them would have
Lasted at least 15 minutes but less than 20 minutes
A) 6 
B) 8 
C) 10 
D) 16

Quizplus · Accepted Answer

The correct choice is based on the probability distribution provided in Scenario 2-5, which indicates that 10% of the calls last between 15 and 20 minutes. Therefore, 10% of 100 calls would be 10 calls.

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