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Lecture3

# 8 conditional probability example 11 contd notes

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Unformatted text preview: 8 Conditional Probability Example 11 (cont’d) Notes Answer the following: 1 What is the probability a person in the study preferred plain bottled water? 2 What is the probability a person in the study preferred a sports drink? Conditional Probability 3 What are the conditional probabilities P(M |S ) and P(W |S )? 4 What are the joint probabilities P(M ∩ S ) and P(W ∩ S )? 5 Given a consumer is a man, what is the probability he will prefer a sports drink? General Multiplication Rule 3.9 Conditional Probability Example 11 Solution. 280 400 120 400 1 P( B ) = 2 P( S ) = 3 P( M | S ) = 40 400 120 400 4 5 = = 0.7 Conditional Proba...
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