The owner of a small deli is trying to decide whether to discontinue selling magazines. he suspects that only 7.3% of his customers buy a magazine and he thinks that he might be able to use the display space to sell something more profitable. before making a final decision, he decides that for one day he will keep track of the number of customers that buy a magazine. assuming his suspicion that 7.3% of his customers buy a magazine is correct, what is the probability that exactly 5 out of the first 13 customers buy a magazine