Posted by **abc** on Sunday, March 16, 2014 at 8:27am.

Let X and Y be normal random variables with means 0 and 2, respectively, and variances 1 and 9, respectively. Find the following, using the standard normal table. Express your answers to an accuracy of 4 decimal places.

P(X>0.75)=

P(X≤−1.25)=

Let Z=(Y−3)/4. Find the mean and the variance of Z.

E[Z]=

var(Z)=

P(−1≤Y≤2)=

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