Consider a binomial experiment with n = 10 and p = 0.40. (a) Compute f(0). (Round your answer to four decimal places.) f(0) = (b) Compute f(2). (Round your answer to four decimal places.) f(2) = (c) Compute P(x = 2). (Round your answer to four decimal places.) P(x = 2) = (d) Compute P(x = 1). (Round your answer to four decimal places.) P(x = 1) = (e) Compute

E(x). E(x) = (f) Compute Var(x) and s. (Round your answer for s to two decimal places.) Var(x) = s= You may need to use the appropriate appendix table or technology to answer this question. A center for medical services reported that there were 295,000 appeals for hospitalization and other services. For this group, 45% of first-round appeals were successful. Suppose 10 first-round appeals have just been received by a Medicare appeals office. (Round your answers to four decimal places.) (a) Compute the probability that none of the appeals will be successful. (b) Compute the probability that exactly one of the appeals will be successful. (c) What is the probability that at least two of the appeals will be successful? (d) What is the probability that more than half of the appeals will be successful? You may need to use the appropriate appendix table or technology to answer this question. A university found that 20% of its students withdraw without completing the introductory statistics course. Assume that 20 students registered for the course. (Round your answers to four decimal places.) (a) Compute the probability that 2 or fewer will withdraw. (b) Compute the probability that exactly 4 will withdraw. (c) Compute the probability that more than 3 will withdraw. (d) Compute the expected number of withdrawals. Consider a Poisson distribution with a mean of three occurrences per time period. (a) Write the appropriate Poisson probability function. f(x) = (b) What is the expected number of occurrences in four time periods? (c) Write the appropriate Poisson probability function to determine the probability of x occurrences in four time periods.

What is the probability that none of the meals will exceed the cost covered by your company? (b) What is the probability that one of the meals will exceed the cost covered by your company? (c) What is the probability that two of the meals will exceed the cost covered by your company? (d) What is the probability that all three of the meals will exceed the cost covered by your company?