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in Statistics and probability by (52.5k points)

A box contains 24 identical balls, of which 12 are white and 12 are black. The balls are drawn at random from the box one at a time with replacement. The probability that a white ball is drawn for the 4th time on the 7th draw is 

(A) 5/64 

(B) 27/32 

(C) 5/32 

(D) 1/2

1 Answer

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Best answer

Answer is (C) 5/32

To get 3 white balls in first 6 draw and then a white again in 7th draws.

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