Assume that there are 4 white, 2 black and 3 red balls in a bowl. Two balls selected as randomly; a. If these selected balls assumed to be White and Black, what are the probabilities for all number of white and black ball pairs b. What is the general probability function for this experiment? c. What is marginal probability function for “white” balls?

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Assume that there are 4 white, 2 black and 3 red balls in a bowl. Two balls selected as randomly;
a. If these selected balls assumed to be White and Black, what are the probabilities for all number of white and black ball pairs
b. What is the general probability function for this experiment?
c. What is marginal probability function for “white” balls?

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