The Hoylake Rescue Squad receives an emergency call every 1, 2, 3, 4, 5, or 6 hours, accordingto the following probability distribution. The squad is on duty 24 hours per day, 7 daysper week:Time BetweenEmergency Calls (hr.) Probability1 .052 .103 .304 .305 .206 .051.00 How many calls were made during the 3-day period? Can you logically assume that this is an average number of calls per 3-day period? If not, how could you simulate to determine such an average?

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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The Hoylake Rescue Squad receives an emergency call every 1, 2, 3, 4, 5, or 6 hours, according
to the following probability distribution. The squad is on duty 24 hours per day, 7 days
per week:
Time Between
Emergency Calls (hr.) Probability
1 .05
2 .10
3 .30
4 .30
5 .20
6 .05
1.00 How many calls were made during the 3-day period? Can you logically assume that this is
an average number of calls per 3-day period? If not, how could you simulate to determine
such an average?

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