thie balk alter Alex receives phone calls starting at 8:00 a.m. at the rate of 5 phone calls per hour according to a Poisson process. Find the probability that he will receive exactly 13 phone calls by noon and 5 phone calls by 4:00 p.m. The number of claims received per week at an insurance company has a Poisson distribution. Th probability that five claims are received in a week is one-third of the probability that four claims a received in a week. Calculate the probability that the number of claims received in a week excee three