A regional director responsible for business development in the state of Pennsylvania is concerned about the number c small business failures. If the mean number of small business failures per month is 9, what is the probability that exactly 4 small businesses will fail during a given month? Assume that the probability of a failure is the same for any two months and that the occurrence or nonoccurrence of a failure in any month is independent of failures in any other month. If required, round your answer to four decimal places. D