A firm wants to launch a new brand of television and refrigerator, The firm conducted a survey and…
By the addition theorem of probability for two non-mutually exclusive events, P(T or R) = P(T) + P(R) - P(T and R). Given P(Television) = 0.60, P(Refrigerator) = 0.65, and…
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A firm wants to launch a new brand of television and refrigerator, The firm conducted a survey and found that 600 of the households have television, 65% have a refrigerator and 35%, both a television and a refrigerator. If a household is randomly selected, what is the probability that the household has either a television or refrigerator?
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Correct answer B
By the addition theorem of probability for two non-mutually exclusive events, P(T or R) = P(T) + P(R) - P(T and R). Given P(Television) = 0.60, P(Refrigerator) = 0.65, and P(Both) = 0.35, the probability that a randomly selected household has either a television or a refrigerator is 0.60 + 0.65 - 0.35 = 0.90.
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UGC NET Commerce