6
Answer (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 average there are 6 calls per hour. What is the probability that there are greater than 3 calls in one hour (rounded to 4 decimal places)?
A. 0.0211
B. 0.4661
C. 0.8488
D. 0.9345
