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In a study of 1000 persons there are 380 that males and 620 females. If there are 411 people who drink alcohol and 152 of

In a study of 1000 persons there are 380 that males and 620 females. If there are 411 people who drink alcohol and 152 of them are female. Find the probability that a person does not drink if we know that is a female.

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