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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Question

This purpose of this problem is to give you an intuitive idea of what conditional probability is. Suppose
that your friend Komala randomly chooses a number between 1 and 15 (including both) and asks you to
guess what it is. Answer the following questions:
(a) What is the probability she is thinking of an even number?
(b) What is the probability the number she is thinking of has a 1 in it?
(c) What is the probability that the number she is thinking of is at least 9?

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