Compute the probability that the first week is free of such accidents. (b) What is the probability that the first accident occurs on Friday of the

Compute the probability that the first week is free of such accidents. (b) What is the probability that the first accident occurs on Friday of the first week? (c) What is the probability that the first accident occurs on Tuesday of the second week? (d) What is the expected number of working days lapsed before the first acci-dent occur