answer all questions with explanation

If a binomial distribution applies with a sample size of n = 20, find the values below. a. The probability of 5 successes if the probability of a success is 0. 15 b. The probability of at least 7 successes if the probability of a success is 0.45 c. The expected value, n = 20, p = 0.55 d. The standard deviation, n = 20, p = 0.55 .... . a. The probability of 5 successes if the probability of a success is 0.15 is (Round to four decimal places as needed.) b. The probability of at least 7 successes if the probability of a success is 0.45 is (Round to four decimal places as needed.) c. The expected value is .(Type an integer or a decimal.) d. The standard deviation is (Round to four decimal places as needed.)