Question 266375
Use the Poisson Distribution to find the indicated probability. 
The number of calls received by a car towing service averages 19.2 per day (per 24-hour period). After finding the mean number of calls per hour, find the probability that in a randomly selected hour the number of calls is 2.
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I used the poissonpdf((19.2/24),2) function on a TI-84 and 
got 0.14379
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Cheers,
Stan H.
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a. 0.15816 
b. 0.14379 
c. 0.11503 
d. 0.17973