# Question: Duplicate the method used in the proof of Theorem 8 16

Duplicate the method used in the proof of Theorem 8.16 to show that the joint density of Y1 and Yn is given by

(a) Use this result to find the joint density of Y1 and Yn for random samples of size n from an exponential population.

(b) Use this result to find the joint density of Y1 and Yn for the population of Exercise 8.46.

(a) Use this result to find the joint density of Y1 and Yn for random samples of size n from an exponential population.

(b) Use this result to find the joint density of Y1 and Yn for the population of Exercise 8.46.

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