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Posted on Jul 04, 2024

Consider a group of 20 people in which 7 wear eye glasses, 6 wear hearing aids and 2 wear both eye glasses and hearing aids.

Consider a group of 20 people in which 7 wear eye glasses, 6 wear hearing aids and 2 wear both eye glasses and hearing aids. What is the probability of picking someone out of the group whoDOES NOTwears either an eye glasses or a hearing aid?

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