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 randomly sampled, how many calls lasted 15 minutes or longer?
A) 10
B) 14
C) 26
D) 74

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 randomly sampled, how many calls lasted 15 minutes or longer?
A) 10 
B) 14 
C) 26 
D) 74

Quizplus · Accepted Answer

From Table 2-6, we can see that there are 26 calls that lasted 15 minutes or longer. Therefore, if 100 calls were randomly sampled, we would expect approximately 26 of them to last 15 minutes or longer.

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