CBSE Class 12-science Answered
probablity question
Asked by | 19 Mar, 2008, 08:57: AM
Expert Answer
Here we need to notice that in the question the probability of the ball transferred from bag A to B is being asked not the probability of getting a red ball finally.
So, we need to find the probability of transferring a black ball from bag A to B (in other words we can say we need to find the probabilty of getting a black ball from bag A)
The Probability of transferring a black ball from bag A is = 4/7 (no. of favourable outcomes / total outcomes)
Answered by | 09 May, 2008, 04:43: PM
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