There are 10 urns of which each of 3 contains 1W, 9B balls, each others 3 contains 9W, 1B balls and remaining 4 each contains 5W, 5B balls. One of the urns was selected at random and a ball was chosen from it. (i) What is the probability that it is white ball? (ii) If ball is black, what is the chance that it comes out from the urn consisting 9W and 1B balls.

There are 10 urns of which each of 3 contains 1W, 9B balls, each others 3 contains 9W, 1B balls and remaining 4 each contains 5W, 5B balls. One of the urns was selected at random and a ball was chosen from it. (i) What is the probability that it is white ball? (ii) If ball is black, what is the chance that it comes out from the urn consisting 9W and 1B balls.

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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