A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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Concept explainers

Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear re…
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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According to a study, the probability that a randomly selected teenager studied at least once during the week was only 0.52. Let X be the number of teenagers who studied at least once during the week.


a. What is the probability that exactly 5 of the students in your study group of 10 have studied in the last week?

b. What is the probability that at least 5 of the students in your study group of 10 have studied in the last week?

c. What is the probability that at most 4 of the students in your study group of 10 have studied in the last week?

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