Question: Given the following probability distributions for variables X and Y: P(Xi Yi) X Y 0.4 100 200 0.6 200 100 Calculate: a. E(X ) and

Given the following probability distributions for variables X and Y:

P(Xi Yi) X Y 0.4 100 200 0.6 200 100 Calculate:

a. E(X ) and E(Y )

b. σX and σY

c. σXY

d. E(X + Y )

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