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Mark is late to class every day with the probability of 0.2. a) What is the probability that he was at most one working day late to class? b) For which maximum number of working days can we be at least 90% sure that at least as many times (as the number of required working days) he was not late to class?

Mark is late to class every day with the probability of 0.2. a) What is the probability that he was at most one working day late to class? b) For which maximum number of working days can we be at least 90% sure that at least as many times (as the number of required working days) he was not late to class?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Mark is late to class every day with the probability of 0.2. a) What is the probability that he was at most one working day late to class? b) For which maximum number of working days can we be at least 90% sure that at least as many times (as the number of required working days) he was not late to class?
Transcribed Image Text:Mark is late to class every day with the probability of 0.2. a) What is the probability that he was at most one working day late to class? b) For which maximum number of working days can we be at least 90% sure that at least as many times (as the number of required working days) he was not late to class?
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