An urn contains 10 red and 4 white balls. Three balls are drawn at random. Obtain the probability that all are White
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Answer:
No. of red balls = 10
no. of white balls = 4
total no. of balls = 14
probability = no. of red balls in trials
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total no. of trials
= 4
-----
14
= 2
----- ans.
7
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