Assume a binomial probability distribution with formula n=45 and =0.22 Compute the following:
(a) The mean and standard deviation of the random variable. (Round your "?" to 4 decimal places and mean to 1 decimal place.)
(b) The probability that X is 11 or more. (Use the rounded values found above. Round your answer to 4 decimal places.)
(c) The probability that X is 7 or less. (Use the rounded values found above. Round your answer to 4 decimal places.)