Question: Answer the questions and show all the steps... Question 1 4.0 points possible (ungraded, results hidden) The discrete random variable X has the probability distribution

Answer the questions and show all the steps...

Question 1 4.0 points possible (ungraded, results hidden) The discrete random variable X has the probability distribution given by: X -3 1 3 5 P(X=X) 2r 0.25 0.2 0.1 r a. What is the probability of X when X=-3? b. What is the expected value of the random variable X? c. What is the variance of the random variable X? (Write in two decimal place). d. Find the variance of the random variable Y for which Y" = -3X + 2. (Write in two decimal place)

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