The probability that Pharsa passes the quiz 1 is 1/4 , and the probability that she passes quiz 2 is 3/5. If the probability of passing both courses is 1/3, what is the probability that Pharsa will pass at least one of these quizzes? a. 17/20 b. 31/60 c. 31/36 d.3/20

The probability that Pharsa passes the quiz 1 is 1/4 , and the probability that she passes quiz 2 is 3/5. If the probability of passing both courses is 1/3, what is the probability that Pharsa will pass at least one of these quizzes? a. 17/20 b. 31/60 c. 31/36 d.3/20

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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a. 17/20

b. 31/60

c. 31/36

d.3/20

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