According to USA Today (March 18, 1997), of 4million workers in the general workforce, 5.8% testedpositive for drugs. Of those testing positive, 22.5%were cocaine users and 54.4% marijuana users.(a) What is the probability that of 10 workers testingpositive, 2 are cocaine users, 5 are marijuana users,and 3 are users of other drugs?(b) What is the probability that of 10 workers testingpositive, all are marijuana users?(c) What is the probability that of 10 workers testingpositive, none is a cocaine user?

Answered: Image /qna-images/answer/672c2231-e44f-437b-809c-8cc9ab12bae9.jpg

Answered: and 3 are users of other drugs?(b) What…

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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and 3 are users of other drugs?(b) What is the probability that of 10 workers testing positive, all are marijuana users?(c) What is the probability that of 10 workers testing positive, none is a cocaine user?