3. A class in advanced physics is comprised of 10 juniors, 30 seniors, and 10 graduate students. The final grades showed that 3 of the juniors, 10 of the seniors, and 5 of the graduate students received an A for the course. If a student is chosen at random from this class and is found to have earned an A, what is the probability that he or she is a senior?

3. A class in advanced physics is comprised of 10 juniors, 30 seniors, and 10 graduate students. The final grades showed that 3 of the juniors, 10 of the seniors, and 5 of the graduate students received an A for the course. If a student is chosen at random from this class and is found to have earned an A, what is the probability that he or she is a senior?

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Description: 3. A class in advanced physics is comprised of 10 juniors, 30 seniors, and 10 graduatestudents. The final grades showed that 3 of the juniors, 10 of the seniors, and 5 of thegraduate students received an A for the course. If a student is chosen at r

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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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 relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

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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3. A class in advanced physics is comprised of 10 juniors, 30 seniors, and 10 graduate
students. The final grades showed that 3 of the juniors, 10 of the seniors, and 5 of the
graduate students received an A for the course. If a student is chosen at random from this
class and is found to have earned an A, what is the probability that he or she is a senior?
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