The Manager of the Local Grocery Store Has Determined That

Multiple Choice

The manager of the local grocery store has determined that, on 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) .1483
B) .0916
C) .1465
D) .9084
E) .7619