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Acheck of dorm rooms on a large college campus revealed that 36 % had refrigerators, 51 % had tvs, and 20 % had both a refrigerator and a tv. what's the probability that a randomly selected dorm room has a) a refrigerator but no tv? b) a refrigerator or a tv, but not both? c) neither a refrigerator nor a tv?

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Acheck of dorm rooms on a large college campus revealed that 36 % had refrigerators, 51 % had tvs, a...
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