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Engineering, 12.02.2021 14:10 Tink2334

b. The lifetime of a computer microprocessor chip behaves according to the probability law for P[(t, ꝏ)]= 1/t for t>1. Let A be the event “lifetime is greater than 4,” and B the event “lifetime is greater than 8.” • Find the probability of and A U B and A∩B. • Find the probability of the event “lifetime is greater than 6 but less than or equal to 12.

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