In our example, 30/1, or in words 'thirty to one'. In fact in gambling the odds of not winning are preferred and expressed as a ratio X/1. For example among 3100 persons gambling on horses, 100 persons put money on horse 'A' to win and 3000 do not (they bet on other horses). putting money on other horses) we can compute the odds of winning.
If we compute the number of people putting money on one horse winning and the number of people putting money on the horse not winning (i.e. This probability measure is popular in the world of gambling.
