A check of dorm rooms on a large college campus revealed that 30% had refrigerators, 50%...

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A check of dorm rooms on a large college campus revealed that 30% had refrigerators, 50% had TVs, and 25% 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? a) The probability of having a refrigerator but no TV is A check of dorm rooms on a large college campus revealed that 30% had refrigerators, 50% had TVs, and 25% 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? a) The probability of having a refrigerator but no TV is