Lecture9

# Lecture9 - Random Variables and Probability Mass Functions...

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Random Variables and Probability Mass Functions From Variables to Random Variables Probability Mass Function 9.1 Lecture 9 Random Variables and Probability Mass Functions Text: A Course in Probability by Weiss 5 . 1 , 5 . 2 , 5 . 8 STAT 225 Introduction to Probability Models September 15, 2013 Whitney Huang Purdue University Random Variables and Probability Mass Functions From Variables to Random Variables Probability Mass Function 9.2 Agenda 1 From Variables to Random Variables 2 Probability Mass Function Notes Notes

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Random Variables and Probability Mass Functions From Variables to Random Variables Probability Mass Function 9.3 Variable A variable denotes a characteristic that varies from one person or thing to another. Examples include height, weight, marital status, gender, etc. Variables can be either quantitative (numerical) or qualitative (categorical). We use frequency and relative frequency when describing variables Random Variables and Probability Mass Functions From Variables to Random Variables Probability Mass Function 9.4 Example 33
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