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A box contains m balls of which r are red. They are randomly picked up. • Two balls are taken one after another. What is the probability that both are red? • How many samples ofn balls of which j are red can one get if n < m? • How many samples of n balls with at most 2 red balls one can get? Assume 2

A box contains m balls of which r are red. They are randomly picked up. • Two balls are taken one after another. What is the probability that both are red? • How many samples ofn balls of which j are red can one get if n < m? • How many samples of n balls with at most 2 red balls one can get? Assume 2

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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A box contains m balls of which r are red. They are randomly picked up. • Two balls are taken one after another. What is the probability that both are red? • How many samples of n balls of which j are red can one get if n < m? • How many samples of n balls with at most 2 red balls one can get? Assume 2 <n < m.
Transcribed Image Text:A box contains m balls of which r are red. They are randomly picked up. • Two balls are taken one after another. What is the probability that both are red? • How many samples of n balls of which j are red can one get if n < m? • How many samples of n balls with at most 2 red balls one can get? Assume 2 <n < m.
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