Question
let X,Y,Z be three independent N(0,1) random variables a) Let W = X +2Y +3Z, what are the mean, variance, skewness, excess kurtosis of W?
let X,Y,Z be three independent N(0,1) random variables
a) Let W = X +2Y +3Z, what are the mean, variance, skewness, excess kurtosis of W?
b) Let V= X^2 + Y*Z what is the conditional distribution of V given X and Z?
c) What is the conditional distribution of V given X =1 and Z=2?
d) What is the conditional variance of V given Y and Z?
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Algebra 1
Authors: Mary P. Dolciani, Richard A. Swanson
(McDougal Littell High School Math)
9780395535899, 0395535891
