An urn contains r red balls and b blue balls. A ball is chosen uniformly at random from the urn. Its color is noted, and it is returned together with d more balls of the same color. This is repeated twice. What is the probability \begin{enumerate} \item The second ball drawn is blue. \item The first ball drawn is blue given that the second ball drawn is blue. \end{enumerate}
An urn contains r red balls and b blue balls. A ball is chosen uniformly at random from the urn. Its color is noted, and it is returned together with d more balls of the same color. This is repeated twice. What is the probability \begin{enumerate} \item The second ball drawn is blue. \item The first ball drawn is blue given that the second ball drawn is blue. \end{enumerate}
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.CT: Chapter Test
Problem 29CT
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