SOLUTION: please help me with this question on probablity. A bag Cantains 6 White and 4 black balls, two balls are drawm at random. Find the probability that they are one of the same co

Algebra ->  Algebra  -> Probability-and-statistics -> SOLUTION: please help me with this question on probablity. A bag Cantains 6 White and 4 black balls, two balls are drawm at random. Find the probability that they are one of the same co      Log On

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Question 174378: please help me with this question on probablity.
A bag Cantains 6 White and 4 black balls, two
balls are drawm at random. Find the probability
that they are one of the same colour:-
Thank you..
Answer by stanbon(48568) About Me  (Show Source):
You can put this solution on YOUR website!
A bag Cantains 6 White and 4 black balls, two
balls are drawm at random. Find the probability
that they are one of the same colour:-
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P(2white or 2black) = P(2white) + P(2black) = 6C2/10C2 + 4C2/10C2
= (6C2 + 4C2)/(10C2) = (15 + 6)/45 = 21/45
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Cheers,
Stan H.