TABLE 2-6
The following are the durations in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier.

-Referring to Table 2-6, if 100 calls were sampled, ________ of them would have lasted less than 15 minutes.
A) 26
B) 74
C) 10
D) None of the above.

Question

TABLE 2-6
The following are the durations in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier.
 
-Referring to Table 2-6, if 100 calls were sampled, ________ of them would have lasted less than 15 minutes.
A) 26 
B) 74 
C) 10 
D) None of the above.

Quizplus · Accepted Answer

The cumulative percentage for 15 minutes is 74%, so 74 out of 100 calls would have lasted less than 15 minutes.

TABLE 2-6 The Following Are the Durations in Minutes of a Sample