Problem#1: A multiple choice test contains 25 questions, each with four answers. Assume a student just guesses on each question. (a) What is the probability that the student answers more than 20 questions correctly? (b) What is the probability the student answers less than 5 questions correctly?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Problem#1: A multiple choice test contains 25 questions, each with
four answers. Assume a student just guesses on each question. (a) What
is the probability that the student answers
more than 20 questions
correctly? (b) What is the probability the student answers less than 5
questions correctly?
Transcribed Image Text:Problem#1: A multiple choice test contains 25 questions, each with four answers. Assume a student just guesses on each question. (a) What is the probability that the student answers more than 20 questions correctly? (b) What is the probability the student answers less than 5 questions correctly?
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