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 sampled, _______ of them would have lasted less
Than 5 minutes or at least 30 minutes or more.
A) 35
B) 37
C) 39
D) None of the above.

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 sampled, _______ of them would have lasted less
Than 5 minutes or at least 30 minutes or more.
A) 35 
B) 37 
C) 39 
D) None of the above.

Quizplus · Accepted Answer

The question implies that we are looking for calls that lasted either less than 5 minutes or at least 30 minutes. If 39 out of 100 calls fit this criteria, then option C is the correct choice.

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