Most internet service providers (ISPs) attempt to provide a large enough service so that customers can usually obtain a connection. Suppose that the customers of one ISP establish a connection 90% of the time on their first try.
a. What is the probability that the customer will make a connection in one or two tries?
b. If a customer, on average, makes 12 connections per week, what is the probability that he/she made the connection on the first try for all twelve times?
c. Again assuming 12 connctions per week, what is the probability that he/she made the connection at least 10 times on the first try?
