4) An important part of the customer service responsibilities of a cable company relates to the speed with which trouble in service can be repaired.

4)   An important part of the customer service responsibilities of a cable company relates to the speed with which trouble in service can be repaired. Historically, the data show that the likelihood is 0.80 that troubles in a residential service can be repaired on the same day. For the first eight troubles reported on given day, what is the probability that: At least 4 troubles will be repaired on the same day.