1. 

1. Consider the following probability mass function for Y p p (y - 7 ) 2 f (y; 7, p) = 272 y V 2173 e where y > 0, p > 0 and the random variable Y can take any positive values. (a) Show that this distribution can be written in the form of exponential family and write down the relevant expressions in terms of 0, b(0) and c(y, ) given