Refer to Exercise 16. A competing process produces rings whose diameters (in centimeters) vary according to the probability density function 15[1 – 25(x – 10.05) ]/4 9.85

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A: Mean = 17 p(X<19.2) = 0.65

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A:

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A: We know that Exponential proabability distribution function f(x) = Mean () = 4