(a) Determine if this probability experiment qualifies as binomial. Explain. (b) How many problems would you expect to get correct? = (c) What is the standard deviation? %3D

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A test consists of 15 multiple choice questions. There is a 25% chance of getting a question
correct. As an experiment you guess on each and every question without reading any of the
problems.
(a) Determine if this probability experiment qualifies as binomial. Explain.
(b) How many problems would you expect to get correct? =
(c) What is the standard deviation? =
(d) What is the probability of getting exactly 3 problems correct on the test? =
(e) What is the probability of getting 7 or more problems correct? =
(f) What is the probability of getting less than 7 problems correct? =
(g) What is the probability of getting between 9 and 13 problems correct, inclusive? =
(h) Can we approximate this binomial distribution with a normal distribution? Explain.
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Transcribed Image Text:A test consists of 15 multiple choice questions. There is a 25% chance of getting a question correct. As an experiment you guess on each and every question without reading any of the problems. (a) Determine if this probability experiment qualifies as binomial. Explain. (b) How many problems would you expect to get correct? = (c) What is the standard deviation? = (d) What is the probability of getting exactly 3 problems correct on the test? = (e) What is the probability of getting 7 or more problems correct? = (f) What is the probability of getting less than 7 problems correct? = (g) What is the probability of getting between 9 and 13 problems correct, inclusive? = (h) Can we approximate this binomial distribution with a normal distribution? Explain. MacBook PrO
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