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what is the probability that at most 2 students out of 20 fail this course? {Hint: use binomial distribution}

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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Question

Q25. If the records show that, the probability of failing
(with grade F) this course is p, [use the answer to
question 22 above as the probability, p, here], what
is the probability that at most 2 students out of 20
fail this course? {Hint: use binomial distribution}

n=20

A=10

B=2

C=2

D=2

F=4

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