You have n urns, the rth of which contains r-1 red balls and n-rblue balls, r=1,..., n. You pick an urn at random and remove two balls from it withoutreplacement. Find the probability that the two balls are of different colours. Find the sameprobability when you put back a removed ball.

Answered: Image /qna-images/answer/a1dbd3cf-524e-40a1-a52b-fb99f44cf3b6.jpg

Answered: You have n urns, the rth of which…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You have n urns, the rth of which contains r-1 red balls and n-r blue balls, r=1,..., n. You pick an urn at random and remove two balls from it without replacement. Find the probability that the two balls are of different colours. Find the same probability when you put back a removed ball.