Example 9-53. (a) Find the p.d.f. of X) in a random sample of size n from the exponential distribution: f(x) = a eax , a>0, x 2 0. (6) Show that X and W, = X9- X¢, r

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Example 9-53. (a) Find the p.d.f. of Xr) in a random sample of size n from the
exponential distribution: f(x) = a e i, a>0, x 20.
(b) Show that X) and W, = X9-X¢», r < s, are independently distributed.
%3D
Transcribed Image Text:Example 9-53. (a) Find the p.d.f. of Xr) in a random sample of size n from the exponential distribution: f(x) = a e i, a>0, x 20. (b) Show that X) and W, = X9-X¢», r < s, are independently distributed. %3D
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