The number of cracks in a section of interstate highway that…

The number of cracks in a section of interstate highway that are significant enough to require repair is assumed to follow a Poisson distribution with a mean of two cracks per mile.What is the probability that there are no cracks that require repair in 5 miles of highway?

Assume that each of your calls to a popular radio station ha…

Assume that each of your calls to a popular radio station has a probability of p=0.02p = 0.02p=0.02 of connecting (not obtaining a busy signal). Calls are independent.(a) What is the probability that your first call that connects is your 10th call?(b) What is the mean number of calls needed to connect?