Let X be a random variable with the following probability distribution. Value x of X P(X=x) 20 0.05 30 0.30 40 0.20 0.10 60 0.25 70 0.10 Complete the following. (If necessary, consult a list of...

Let X be a random variable with the following probability distribution.<br>Value x of X P(X=x)<br>20<br>0.05<br>30<br>0.30<br>40<br>0.20<br>0.10<br>60<br>0.25<br>70<br>0.10<br>Complete the following. (If necessary, consult a list of formulas.)<br>(a) Find the expectation E (X) of X.<br>E(x) =<br>(b) Find the variance Var(X) of X.<br>Var(x) = ]<br>50<br>

Extracted text: Let X be a random variable with the following probability distribution. Value x of X P(X=x) 20 0.05 30 0.30 40 0.20 0.10 60 0.25 70 0.10 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E(x) = (b) Find the variance Var(X) of X. Var(x) = ] 50

Jun 02, 2022

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Let X be a random variable with the following probability distribution. Value x of X P(X=x) 20 0.05 30 0.30 40 0.20 0.10 60 0.25 70 0.10 Complete the following. (If necessary, consult a list of...

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