Can you share with us what you have tried so far? This is not a terribly hard diagram to draw. It requires some typing though and it's easier to help someone perfect their code, rather than write it from scratch (as much as I love Tikz).
– AlenannoMay 08 '15 at 21:07
Also http://tex.stackexchange.com/questions/39256/latex-probability-tree?rq=1, http://tex.stackexchange.com/questions/237483/how-to-use-tikz-and-macros-to-very-efficiently-draw-recombining-binomial-trees-w and quite a lot more....
– cfrMay 08 '15 at 23:14
forestpackage but then I found this question. The answer is perfect for your case. It even has the nodes at the bottom: Problem with probability tree – Alenanno May 08 '15 at 22:49