SOLUTION: A bag contains 10 red and 15 black balls.if 5 balls are drawn from bag what is probability we get at least one black ball?

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Question 305318: A bag contains 10 red and 15 black balls.if 5 balls are drawn from bag what is probability we get at least one black ball?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A bag contains 10 red and 15 black balls.if 5 balls are drawn from bag what is probability we get at least one black ball?
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P(atleast one black) = 1 - P(no black)
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P(x>=1) = 1 - [10C5/25C5]
= 1 - 0.0047
= 0.9953
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Cheers,
Stan H.