91r63. The probability that a contractor will get a plumbing contract is 2/3, and the probabilitythat he will not get an electric contract is 5/9. If the probability of getting at least one contract is 4/5what is the probability that he will get both the contracts ?

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Answered: r63. The probability that a contractor…

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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r63. The probability that a contractor will get a plumbing contract is 2/3, and the probability that he will not get an electric contract is 5/9. If the probability of getting at least one contract is 4/5 what is the probability that he will get both the contracts ?