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Let X1, X2, X3 be a random sample of size 3 from a distribution that is...

Let X1, X2, X3 be a random sample of size 3 from a distribution that is Normal with mean 9 and variance 4.

(a) Determine the probability that the maximum of X1; X2; X3 exceeds 12.

(b) Determine the probability that the median of X1; X2; X3 less than 10.

Please I need a solution that uses the pdf/CDF of the corresponding order statistics.

Math   Statistics-And-Probability   
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