Kizspy | Question: 20 (Choose 1 answer)
The number of telephone calls that arrive at a phone exchange is often modeled as a Poisson random variable. Assume that on the average there are 10 calls per hour. What is the probability that there are exactly 6 calls in 30 minutes?
Α. 0.0413
B. 0.0631
C. 0.1606
D. 0.1462
E. None of the other choices is correct
