# Probability ... need detail answer..

Apr 16th, 2015
HelloWorld
Category:
Mathematics
Price: \$5 USD

Question description

Two urns contain 5 white and 7 black balls,3 white and 9 black balls respectively. One ball is transferred to second urn and then one ball is drawn from second urn. Find the probability that first ball is black given that ball drawn is black

a)13/23   b)11/23   c)14/23  d)7/23

(Top Tutor) Daniel C.
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School: UIUC

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Apr 18th, 2015
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