Question: Suppose a random variable X satises E[X] = 32 and V ar(X) = 16. What can be said about P(20 < X < 44)? Suppose

Suppose a random variable X satises E[X] = 32 and V ar(X) = 16. What can be said

about P(20 < X < 44)?

Suppose that E[X] = 2, E[X2] = 8, E[Y ] = 8, E[Y2] = 100, and Var(X + Y ) = 60.

What is (X,Y ), the correlation of X and Y ?

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