A multiple choice exam has 200 questions each with 4 possible answers. Jim is completely unprepared for this exam so he decides to randomly select one of the 4 possible answers for each question. a) What is the probability that he will answer 60 or fewer of the questions correctly? b) What is the probability that he will need 5 or fewer trials for his 2nd success?

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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8) A multiple choice exam has 200 questions each with 4 possible answers. Jim is completely unprepared for this exam so he decides to randomly select one of the 4 possible answers for each question.

a) What is the probability that he will answer 60 or fewer of the questions correctly?

b) What is the probability that he will need 5 or fewer trials for his 2nd success?

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