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A company has 3 machines: A, B, and C. The number of breakdowns per week is...

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Statistics

A company has 3 machines: A, B, and C. The number of breakdownsper week is distributed Poisson. On average, machine A breaks down.4 times per week, machine B breaks down .45 times per week andmachine C breaks down .9 times per week. The probability that thereare 2 breakdowns in one week is _____ (round to 4 decimalplaces).

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