Past evidence shows that when the customer complains of an out-of-order phone there is an 8% chance that problem is with inside wiring. Throughout a 1-month period, 100 complaints are lodged. Suppose that these failures are considered to be independent. Find out the expected number of failures because of a problem with the inside wiring. Find out the probability that at least ten failures are because of a problem with the inside wiring. Would it be unusual if at most five were due to problems with inside wiring? Describe, based upon probability of this occurring.