10 notes random variables and probability mass

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Unformatted text preview: Variables and Probability Mass Functions Example 35 Notes Let X be a random variable with pmf defined as follows: pX (x ) = 1 k (5 − x ) 0 if x = 0, 1, 2, 3, 4 otherwise (1) Find the value of k that makes pX (x ) a legitimate pmf. 2 Probability Mass Function What is the probability that X is between 1 and 3 inclusive? 3 From Variables to Random Variables If X is not 0, what is the probability that X is less than 3? 9.11 Random Variables and Probability Mass Functions Example 35 Solution. 1 2 3 By property 3 of pmf,...
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This note was uploaded on 01/24/2014 for the course STAT 225 taught by Professor Martin during the Spring '08 term at Purdue University-West Lafayette.

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