QUESTION 20 The random variable X has the probability distribution given in the table below. X=x P(X=x) 12 0.2 15 0.2 0.2 0.2 0.2 a) Find the expected value of X. b) Find the variance of X. c) Find...

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QUESTION 20<br>The random variable X has the probability distribution given in the table below.<br>X=x<br>P(X=x)<br>12<br>0.2<br>15<br>0.2<br>0.2<br>0.2<br>0.2<br>a) Find the expected value of X.<br>b) Find the variance of X.<br>c) Find the standard deviation of X.<br>

Extracted text: QUESTION 20 The random variable X has the probability distribution given in the table below. X=x P(X=x) 12 0.2 15 0.2 0.2 0.2 0.2 a) Find the expected value of X. b) Find the variance of X. c) Find the standard deviation of X.

Jun 09, 2022

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QUESTION 20 The random variable X has the probability distribution given in the table below. X=x P(X=x) 12 0.2 15 0.2 0.2 0.2 0.2 a) Find the expected value of X. b) Find the variance of X. c) Find...

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