<PRE><B>Question 749424</B>
suppose a basket contains 100 red balls and 50 white balls, if two balls are drawn one after the other without replacement at random. what is the probability that they will both of the same colour
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# of ways to succeed: 100C2 + 50C2 = 6175
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# of random pairs: 150C2 = 11,175
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P(2red or 2white) = 6175/11175 = 0.5526
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Cheers,
Stan H.
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