SOLUTION: A bag contains 5 white, 7 red and 8 black balls. If four balls are drawn one by one without replacement, find the probability of getting all white balls.could you please help to ge
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Question 922881: A bag contains 5 white, 7 red and 8 black balls. If four balls are drawn one by one without replacement, find the probability of getting all white balls.could you please help to get calculations and also the explanation as to which formula have you applied
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A bag contains 5 white, 7 red and 8 black balls. If four balls are drawn one by one without replacement, find the probability of getting all white balls.could you please help to get calculations and also the explanation as to which formula have you applied
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# of ways to succeed:: 5C4 = 5C1 = 5
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# of possible outcomes:: 20C4 = (20*19*18*17)/(1*2*3*4) = 4845
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P(4 white) = 5/4845 = 1/969
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Cheers,
Stan H.
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