Suppose that patrons of a restaurant were asked whether they preferred beer or whether they preferred wine. 60% said that they preferred beer. 70% of the patrons were male. 80% of the males preferred beer.
Are gender of patrons and drinking preference independent? Explain.

What will be an ideal response?


P(W|F) = 0.867, and P(W) = 0.40. BecauseĀ P(W|F)P(W), we conclude that the two events are dependent. In other words, drinking preference depends on the gender of patrons.

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