TABLE 2- 5
the Following Are the Durations in Minutes

question 135

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.
$$\begin{array}{l}\begin{array} { l l } \hline&\text { Relative }\\\text {Time (in Minutes) }&\text {Frequency }\\\hline0 \text { but lessthan } 5 & 0.37 \\5 \text { but less than } 10 & 0.22 \\\text { 10 but lessthan } 15 & 0.15 \\\text { 15 but less than } 20 & 0.10 \\\text { 20 but lessthan } 25 & 0.07 \\\text { 25 but lessthan } 30 & 0.07 \\30 \text { or more } & 0.02 \\\hline\end{array}\end{array}$$
-Referring to Table 2-5, if 100 calls were sampled, ____of them would have lasted 20 minutes or more.

• A) 26
• B) 74
• C) 16
• D) none of the above

---

Definitions:

Scores

Numerical values that represent the performance or achievement of an individual or group, often used for assessment or comparison purposes.

Variables

Any factor, trait, or condition that can exist in differing amounts or types and can influence the outcome of experiments or studies.

Cause

A factor or event that brings about a specific effect, outcome, or result, often examined in contexts of cause and effect relationships.

Positively Correlated

A relationship between two variables where one variable increases as the other also increases.