P(subscribes to at least one of the two services) = P(A U B) = P(A) + P(B) – P(A N B) = .6 + .8 – 5 = 9 The event that a household subscribes only to tv service can be written as A' N B [(not Internet) and TV]. Now Figure 2.4 implies that .9 = P(A U B) = P(A) + P(A' N B) = .6 + P(A' N B) from which P(A' n B) = .3. Similarly, P(A N B') = P(A U B) – P(B) = .1. This is all illustrated in Figure 2.5, from which we see that P(exactly one) = P(A N B') + P(A' N B) = .1 + .3 = 4 P(A N B') P(A'n B) .3

P(subscribes to at least one of the two services) = P(A U B) = P(A) + P(B) – P(A N B) = .6 + .8 – 5 = 9 The event that a household subscribes only to tv service can be written as A' N B [(not Internet) and TV]. Now Figure 2.4 implies that .9 = P(A U B) = P(A) + P(A' N B) = .6 + P(A' N B) from which P(A' n B) = .3. Similarly, P(A N B') = P(A U B) – P(B) = .1. This is all illustrated in Figure 2.5, from which we see that P(exactly one) = P(A N B') + P(A' N B) = .1 + .3 = 4 P(A N B') P(A'n B) .3

Name: In a certain residential suburb, 60% of all households get Internet se
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Description: In a certain residential suburb, 60% of all households get Internet service from thelocal cable company, 80% get television service from that company, and 50% getboth services from that company. If a household is randomly selected, what is theprobabi

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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