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Posted: **Sun Oct 03, 2021 3:26 pm**

: X 1 X Is A Discrete Random Variable That Can Take On The Values 2 5 7 Or 9 The Probability That X Takes On The Va 1 (50.91 KiB) Viewed 155 times

= X 1. X is a discrete random variable that can take on the values 2, 5, 7, or 9. The probability that X takes on the value of 2 is written as P(X = 2). The probabilities can be found in the table below: x P(X 2 0.10 5 0.25 7 0.35 9 0.30 Using the information in the table, compute the following by hand: (a) E(X) (b) E(X2)

(c) E(X)2 (d) Var(X) (e) E(5X + 2) (f) Var(5X + 2)