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Posted: **Wed May 11, 2022 6:01 am**

: Exercise 3 0 5 The Cumulative Distribution Function F X Of A Discrete Random Variable X Is Given As F 1 0 4 F 2 1 (11.43 KiB) Viewed 18 times

: Exercise 3 0 5 The Cumulative Distribution Function F X Of A Discrete Random Variable X Is Given As F 1 0 4 F 2 2 (16.57 KiB) Viewed 18 times

Exercise 3 (0.5) The cumulative distribution function F(x) of a discrete random variable X is given as: F(1) = 0.4 , F(2) = 0.7 F(3) = 0.9 and F(4) = 1 Find the value of the probability mass function p(x) at X = 3

Exercise 5 (1) 1. Let X be a random variable with E(X) = 4 and E(X) = 20, find the following: a) E(X - 2)2 (0.5) b) var(5 - 2x). (0.5)