Question: Question 1 (9 marks) The exponential distribution with A > 0 has the probability density function f(:v; A) = Ae' for x Z 0. (a)

Question 1 (9 marks) The exponential distribution with A > 0 has the probability density function f(:v; A) = Ae'\" for x Z 0. (a) Show that the exponential distribution is an exponential family and obtain its variance function

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