  Conventional wisdom in baseball circles holds that a seven-game playoff
series is fairer than a five-game series. In an earlier paper, E. Lee May, Jr.
showed that, treating each game as an independent event, a seven-game series is
not significantly fairer. In this paper, we take a different approach, taking
home-field advantage into account. That is, we consider a given series to
consist of two disjoint sets of independent events--the home games and the road
games. We will take the probability of winning a given road game to be
different from the probability of winning a given home game. Our analysis again
shows that a seven-game series is not significantly fairer.
