If we have two boxes, which consist of these balls. The first box has 8 white balls, 4 black balls and 6 red balls. The second box has 3 white balls, 5 black balls and 2 red balls. If from the first box pulls two balls and we pass them to the second box, then we pull from the second box just a ball. How likely is it that the balls will be black when pulled?

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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If we have two boxes, which consist of these balls. The first box has 8 white balls, 4 black balls and 6 red balls. The second box has 3 white balls, 5 black balls and 2 red balls. If from the first box pulls two balls and we pass them to the second box, then we pull from the second box just a ball. How likely is it that the balls will be black when pulled?

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