(b) If you were to ask randomly among those people waiting in line, "How long have you been waiting?", what would be the average of their answers?
(R. L. Kabel, Pennsylvania State University)
| Gasoline shortages in the United States have produced long lines of motorists at service stations. The table below shows a distribution of the times required to obtain gasoline at 23 Centre County service stations. | ||
| (a) What is the average time required? (b) If you were to ask randomly among those people waiting in line, "How long have you been waiting?", what would be the average of their answers? |
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| (c) Can you generalize your results
to predict how long you would have to wait to enter a five-story parking
garage that has a 4-hour time limit? (R. L. Kabel, Pennsylvania State University) |