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Mathematics, 05.07.2020 14:01 christyr2002
A utility company offers a lifeline rate to any household whose electricity usage falls below 240 kWh during a particular month. Let A denote the event that a randomly selected household in a certain community does not exceed the lifeline usage during January, and let B be the analogous event for the month of July (A and B refer to the same household). Suppose P(A) = 0.7, P(B) = 0.5, and P(A ∪ B) = 0.8. Compute the following. a. P(A ∩ B).b. The probability that the lifeline usage amount is exceeded in exactly one of the two months.
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