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2 April, 12:53

The life, in years, of a certain type of electrical switch has an exponential distribution with an average life betaequals3. if 300 of these switches are installed in different systems, what is the probability that at most 70 fail during the first year?

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  1. 2 April, 13:21
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    7o8Mean is 38.5

    median is 31.5

    mode is 45

    range is 60
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