1) The number of customers at Quiet Morning Bakery is believed to follow a Poisson distribution with a mean of 2 customers per minute. During a randomly selected five minute interval, what is the probability of 4 customers arriving to the Quiet Morning Bakery? 0.4032 0.1126 0.4539 0.0189 0.4359
2) Suppose the lifetime of a particular appliance follows an exponential distribution with a mean of 10 years. What is the probability that the appliance will fail in less than 5 years?
0.6321
0.7865
0.3687
0.3935
0.6065