The opposite table shows the number of minutes a group of people spend on phone calls.
Calculate the average number of minutes a person spends on one phone call.
| No. of minutes | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|
| Frequency | 12 | 20 | 36 | 20 | 12 |
\[
\text{Average} = \frac{400}{100} = \boxed{4} \text{ minutes }
\]
MR/Nasef.N
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