Ways to Win the World Series
In the World Series, 2 baseball teams play till one of the teams wins exactly 4 games. How many ways are there for a (given) team to win the world series? For example, WLWWW and WWLLWW are valid orders.
Details and assumptions
LLWWLL is not considered a valid order; we want exactly 4 W's. WWLLWW is considered a valid order for the other team, and we do not want to double count.