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A fair coin is tossed repeatedly. If tail appears on first four tosses, them the probability of head appearing that 2 white and 1 black balls will be

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A fair coin is tossed repeatedly. If tail appears on first four tosses, them the probability of head appearing that 2 white and 1 black balls will be drawn, is
A. `(1)/(2)`
B. `(1)/(32)`
C. `(31)/(32)`
D. `(1)/(5)`
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Correct Answer - A
Appearance of head on fifth toss does not depend on the outcomes of first four tosses. Hence P (head on 5th toss)`=(1)/(2)`
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