In one example, a bookmaker has offered odds and attracted bets that make the result irrelevant; in this case the implied probabilities (probabilities of each horse winning) will add up to a number greater than 1.
A bookmaker has offered odds. This was in one example. A bookmaker has attracted bets. This was in one example. These bets make the result irrelevant. The implied probabilities (probabilities of each horse winning) will add up to a number greater than 1. This is in this case.