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In a certain city, three newspapers A,B, & C are published. Suppose 60% of the families in the city subscribe to newspaper A, 40% subscribe to newspaper B, and 30% subscribe to newspaper C. Suppose also that 20% of the families are subscribe to both newspapers A & B. 10% subscribe to both A & C. 20% subscribe to both B & C. 5% subscribe to all three A, B, & C. If a family was selected at random from the city to subscribe to at least of the three newspapers A,B, & C, what's the probability the family subscribe to newspaper A?

In a certain city, three newspapers A,B, & C are published. Suppose 60% of the families in the city subscribe to newspaper A, 40% subscribe to newspaper B, and 30% subscribe to newspaper C. Suppose also that 20% of the families are subscribe to both newspapers A & B. 10% subscribe to both A & C. 20% subscribe to both B & C. 5% subscribe to all three A, B, & C. If a family was selected at random from the city to subscribe to at least of the three newspapers A,B, & C, what's the probability the family subscribe to newspaper A?

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.4: Applications
Problem 1EQ: 1. Suppose that, in Example 2.27, 400 units of food A, 600 units of B, and 600 units of C are placed...
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In a certain city, three newspapers A,B, & C are published. Suppose 60% of the families in the city subscribe to newspaper A, 40% subscribe to newspaper B, and 30% subscribe to newspaper C. Suppose also that 20% of the families are subscribe to both newspapers A & B. 10% subscribe to both A & C. 20% subscribe to both B & C. 5% subscribe to all three A, B, & C. If a family was selected at random from the city to subscribe to at least of the three newspapers A,B, & C, what's the probability the family subscribe to newspaper A?
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