Frequency distribution
The following frequency distribution gives the time spent for a fill-up at a gas station. Assume that each value in a class is equal to the midpoint of the class. Estimate the mean fill-up time for the given data. Please round your answer to the nearest hundredth.
Your answer:
| Time for Fill-Up at Gas Station (In Minutes) | Frequency |
|---|---|
| 8.50-9.49 | 52 |
| 9.50-10.49 | 47 |
| 10.50-11.49 | 22 |
| 11.50-12.49 | 51 |
| 12.50-13.49 | 37 |
Your answer:
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