Answer Happy

FIRST QUESTION (5 points) Assume that the monthly worldwide average number of airplane crashes of commercial airlines is 2.2. What is the probability that there will be (a) at most 5 such accidents in the next month? 09751 (b) less than 6 such accidents in the next 2 months? 0.7199 (C) exactly 31such accidents in the next 51 months? 0.0037 SECOND QUESTION Complaints about an Internet brokerage firm occur at a rate of 3 per day. The number of complaints appears to be Poisson distributed A. Find the probability that the firm receives 5 or more complaints in a day Probability = 0.18474 B. Find the probability that the firm receives 12 or more complaints in a 3-day period. Probability = 0.12423