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Given a normal distribution with p=104 and =10, and given you silect a sample of n=4, complete parts (a) theough (d) a. What is the probsbity that X is less than 91 ? P(x91)= (Type an integer or decimal rounded to four decimal piaces as needed.) b. What is the probability that x is between 91 and 91.5 ? P(911052)= (Type an integer or decimal rounded to tour decimal places as needed.) d. There is a 60 chance that x is above what vasue? x= (fypes an integer or decimal rounded bo tev decimal places as needed)