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49. Out of 15 rare books, 5 of which are especially valuable, 3 are taken at random by a friend. What is the probability that: none of the 5 is included? b. 3 of the 5 are included? a. S.14

49. Out of 15 rare books, 5 of which are especially valuable, 3 are taken at random by a friend. What is the probability that: none of the 5 is included? b. 3 of the 5 are included? a. S.14

A First Course in Probability (10th Edition)
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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49. Out of 15 rare books, 5 of which are especially valuable, 3 are taken at random by a friend. What is the probability that: none of the 5 is included? b. 3 of the 5 are included? a. 5.14
Transcribed Image Text:49. Out of 15 rare books, 5 of which are especially valuable, 3 are taken at random by a friend. What is the probability that: none of the 5 is included? b. 3 of the 5 are included? a. 5.14
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