SOLUTION: a bag contains 10 balls numbered 1 to 10 . if two balls are selected wth replacemnt , what is the prbabilty tht one of thm is an even numbered ball ?
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Question 779352: a bag contains 10 balls numbered 1 to 10 . if two balls are selected wth replacemnt , what is the prbabilty tht one of thm is an even numbered ball ? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! a bag contains 10 balls numbered 1 to 10 . if two balls are selected wth replacemnt , what is the prbabilty tht one of thm is an even numbered ball ?
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# of pairs with one even numbered ball: 5*5 = 25
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# of random pairs = 10C2 = 45
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P(select a pair with one even ball) = 25/45 = 5/9
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Cheers,
Stan H.
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