Given that X is normally distributed with mean 50 and standard deviation 4, compute the following for n = 25. (a) Mean (Round your answer to the nearest integer.) (b)

variance of X (Round your answer to two decimal places (e.g. 98.76)) (c)P (X <= 52) Round your answer to three decimal places (e.g. 98.765). (d)P (X> 48) Round your answer to three decimal places (e.g. 98.765). (e)P(49 <= X <= 54) Round your answer to three decimal places (e.g. 98.765).