Suppose that (X1,X2,X3) ~ Multinomial(n,Theta1,Theta2,Theta3). Propve by summing the joint probability function that X1 ~ Binomial(n,Theta1).
I struggle with proofs and am having a big challenge with:
1. Determining a starting point.
2. Determining what a "finished" product even looks like. What is the result of the work supposed to be?
Thank you.
I struggle with proofs and am having a big challenge with:
1. Determining a starting point.
2. Determining what a "finished" product even looks like. What is the result of the work supposed to be?
Thank you.