Hi everybody, I don't understand the following manipulation, marked in yellow, when deriving the moment generating function of a gamme variable. Where is the term marked in yellow coming from? Many thanks for your help!
Follow Math Help Forum on Facebook and Google+
Originally Posted by Marmy Hi everybody, I don't understand the following manipulation, marked in yellow, when deriving the moment generating function of a gamme variable. Where is the term marked in yellow coming from? Many thanks for your help! I'm sorry, just understood. There is a substitution: x=y/(1-Bt)....then dx/dy=1/(1-Bt), hence, dx= dy (1/(1-Bt).