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    Probability that lifeline electricity usage is exceeded

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    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) = .8, P(B) = .7, and P(A union B) = .9.

    Compute the following:

    a. P(A intersects B).

    b. The probability that the lifeline usage amount is exceeded in exactly one of the two months. Describe this event in terms of A and B.

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    https://brainmass.com/statistics/probability/probability-that-lifeline-electricity-usage-is-exceeded-327576

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    Statistic's Class Question

    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 ...

    Solution Summary

    The probability that lifeline electricity usage is exceeded is determined.

    $2.19

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