A bag contains 8 black and 7 white balls. Two | vedclass

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Question

(b) Probability that both balls are white $ = \frac{{{}^7{C_2}}}{{{}^{15}{C_2}}} = \frac{1}{5}$

Probability that both balls are black $ = \frac{{{}

Vedclass · Accepted Answer

One ball is white and one is black

Vedclass · Answer

(b) Probability that both balls are white $ = \frac{{{}^7{C_2}}}{{{}^{15}{C_2}}} = \frac{1}{5}$

Probability that both balls are black $ = \frac{{{}^8{C_2}}}{{{}^{15}{C_2}}} = \frac{4}{{15}}$

Probability that one ball is white and one is black $ = \frac{{{}^7{C_1} 	imes {}^8{C_1}}}{{{}^{15}{C_2}}} = \frac{8}{{15}}$.

A bag contains $8$ black and $7$ white balls. Two balls are drawn at random. Then for which the probability is more

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