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Please show your work. The answer is only for reference. You have two electrical components of...

Please show your work. The answer is only for reference.

You have two electrical components of two different kinds. The lifetime of the first kind is exponentially distributed with parameter .2 and the lifetime of the second kind is exponentially distributed with parameter .3. If the lifetimes of the two are independent, what is the probability that the first will fail before the second? Answer: .4

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