Westonci.ca is your go-to source for answers, with a community ready to provide accurate and timely information. Discover a wealth of knowledge from professionals across various disciplines on our user-friendly Q&A platform. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

you repeatedly roll a fair six-sided die until you roll a 1 (and then you stop). every time you roll a 3, you win a points, and every time you roll a 6, you lose b points. you do not win or lose any points if you roll a 2, 4 or a 5. what is the expected number of points (as a function of a and b) you will have when you stop?