Use the Poisson Distribution to Find the Indicated Probability

Multiple Choice

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)

A) 0.15816
B) 0.17973
C) 0.14379
D) 0.11503