14 The marketing manager of a company has noted that she usually receives 10 complaint calls from customers during a week (consisting of 5 working days) and that the calls occur at random. Find the probability of her receiving exactly 5 such calls in a single day. 15 Use the standard normal probability table to find the following (a) P(X 2 1.7) (b) P(Z 2-0.95) (c) P(X