Question: 5. Consider the information given in Exercise 3. Suppose further that the marginal distribution of X is normal with X = 24 and 2X =

5. Consider the information given in Exercise 3. Suppose further that the marginal distribution of X is normal with

μX = 24 and σ2X

= 9.

(a) Give the joint PDF of X,Y.

(b) Use R commands to find P(X ≤ 25,Y ≤ 45).

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