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Find the probability that kelly used her phone

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The amount of time that Kelly uses her phone at work on any given day is uniformly distributed between 30 and 89 minutes. Assume that the amount of time that Kelly uses her phone at work is independent from day to day.

Find the probability that Kelly used her phone for more than 49 minutes on Monday or between 53 and 72 minutes on Wednesday.

Reference no: EM132367492

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