Question

Let X be a discrete random variable with the range RX = {1, 2, 3, 4}....

Let X be a discrete random variable with the range RX = {1, 2, 3, 4}. Let PX(1) = 0.25, PX(2) = 0.125, PX(3) = 0.125.

a) Compute PX(4).

b) Find the CDF of X.

c) Compute the probability that X is greater than 1 but less than or equal to 3.

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

a) It is known that

b) The cumulative density function of X is

c) The probability that X is greater than 1 but less than or equal to 3

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