X have mean 2 and variance 9
a)
E(5-3x) = 5 - 3 *E(x) = 5-3*2=-1
V(5-3x) = V(-3x)
=9*V(x)
=9*9
=81
b)
c)
2. Let X have mean 2 and variance 9. (a) What is the mean and variance...
Let X N(0, 9) have mean 0 and variance 9. Find the expected value of X2(X +1).
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Let Y-ar+b (a) Find the mean...
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Problem1 Let Y=aX + b...
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