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Suppose that 5% of men and 0.25% of wome...

Suppose that 5% of men and 0.25% of women have grey hair. A grey haired person is selected at random. What is the probability of these person being male? Assume that there are equal number of males and females.

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The correct Answer is:
`(20)/(21)`
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Suppose that 5% of men and 0.25% of women have grey hair.A grey haired person is selected at random.What is the probability of this person being male? Assume that there are equal number of males and females.

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MODERN PUBLICATION-PROBABILITY-Revision Exercise
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