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X and Y are two independent normal random variables, each with mean 0 and variance 1. Z=a*X + b*Y, where a and b are two real numbers. Probabilities may be computed using these normal distribution tables, the NORM.DIST function in Excel, or any other method you are comfortable with . Provide answers to each of the following calculations in your pdf file:
(a) Calculate E[Z]
(b) Calculate Var[Z]
(c) Calculate Cov[Z,X]
(d) Calculate P(X>1)
(e) Calculate P(X>1 and Y<0)
the sample space contains 6as and 4bs. what is the probability that a randomly selected set of 3 will include 1a and
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