The Manager of the Local Grocery Store Has Determined That

Multiple Choice

The manager of the local grocery store has determined that, on the average, 4 customers use the service desk every half-hour. Assume that the number of customers using the service desk has a Poisson distribution.
-What is the probability that during a randomly selected half-hour period exactly 2 customers use the service desk?

A) 0183
B) 0733
C) 1465
D) 9084
E) 7619