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TABLE 2- 5
the Following Are the Durations in Minutes

question 38

Multiple Choice

TABLE 2- 5
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.
 Relative Time (in Minutes)  Frequency 0 but lessthan 50.375 but less than 100.22 10 but lessthan 150.15 15 but less than 200.10 20 but lessthan 250.07 25 but lessthan 300.0730 or more 0.02\begin{array}{l}\begin{array} { l l } \hline&\text { Relative}\\\text { Time (in Minutes) }&\text {Frequency }\\\hline0 \text { but lessthan } 5 & 0.37 \\5 \text { but less than } 10 & 0.22 \\\text { 10 but lessthan } 15 & 0.15 \\\text { 15 but less than } 20 & 0.10 \\\text { 20 but lessthan } 25 & 0.07 \\\text { 25 but lessthan } 30 & 0.07 \\30 \text { or more } & 0.02 \\\hline\end{array}\end{array}
-Referring to Table 2-5, if 100 calls were randomly sampled, how many calls lasted 15 minutes or longer?

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