The time of service of a certain desgin of hydraulic, Basic Statistics

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The time of service of a certain desgin of hydraulic

1. The time of service of a certain desgin of hydraulic system equipment ranges between 100,000 and 350,000 hours, with each service life having a uniform probability of occurring.

(a) What is the probability density function?

(b) What is the probability that a certain equipment of this design lasts at least 200,000 hours?

(d) Calculate the mean and variance of this probability distribution.

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Basic Statistics: The time of service of a certain desgin of hydraulic

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Basic Statistics: The time of service of a certain desgin of hydraulic

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