Let X be a random variable with the following probability distribution. Value x of X P(X=x) -30 0.05 -20 0.20 -10 0.15 0.20 10 0.40 Complete the following. (If necessary, consult a list of formulas.)...

Let X be a random variable with the following probability distribution.<br>Value x of X P(X=x)<br>-30<br>0.05<br>-20<br>0.20<br>-10<br>0.15<br>0.20<br>10<br>0.40<br>Complete the following. (If necessary, consult a list of formulas.)<br>|(a) Find the expectation E (X) of X.<br>E (x) = 0<br>(b) Find the variance Var(X) of X.<br>Var(x) = 0<br>

Extracted text: Let X be a random variable with the following probability distribution. Value x of X P(X=x) -30 0.05 -20 0.20 -10 0.15 0.20 10 0.40 Complete the following. (If necessary, consult a list of formulas.) |(a) Find the expectation E (X) of X. E (x) = 0 (b) Find the variance Var(X) of X. Var(x) = 0

Jun 11, 2022

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Let X be a random variable with the following probability distribution. Value x of X P(X=x) -30 0.05 -20 0.20 -10 0.15 0.20 10 0.40 Complete the following. (If necessary, consult a list of formulas.)...

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