6 1 Odds 10
Convert betting odds to probability. Now we want to see what those odds mean in terms of probability. There is another simple formula that takes the numbers in a fractional odds presentation, adds them together and then divides that total by the second number to give a probability factor. So for Barcelona at 4/6 that is 4+6=10 and then 10 divided by 6 = 1.6 then multiply that by 100 = 60%. To calculate winnings on fractional odds, multiply your bet by the top number (numerator), then divide the result by the bottom (denominator). So a $10 bet at 5/2 odds is (10. 5) / 2, which equals $25. A $10 bet at 2/5 odds is (10. 2) / 5, which is $4. As an example, with odds of 4/1, for every £1 you bet, you will win £4. There is a 20% chance of this happening, calculated by 1 / (4 + 1) = 0.20. Hopefully, that is betting odds explained. You should now have the knowledge to read betting odds, understand how likely it is to happen, and how much you stand to win. In bookmakers odds, this would be shown as 3-1. You might think it would be 4-1. It isn't, because bookies odds show the chances against the event. As there are 3 cases where this bet won't win and 1 where it will, the odds are 3-1. In decimal odds, this bet would show as 4.0. Danny Sheridan now provides betting tables and calculation tables for sports bettors so they are able to familiarize themselves with betting odds so they can become better at sports betting.
1 In 8 Odds
When statistical types use the word odds they mean the probability that an event will occur divided by the probability that an event will not occur, that is, odds = p/(1-p).However, in everyday conversation, people can use the word odds with a slightlydifferent but related meaning. In ordinary conversation people often mean Las Vegasor gambling odds. So you will hear terms like 3to1 or 3to2. You may also hear people talk about these matters in terms of chance, as in, the chance is 3in4 or 3in5. So what dopeople mean when they say odds are 3to1 or the chance is 3in4?
Consider a probability of .5 (1/2 = .5) which is equivalent to the statistical odds of 1(.5/(1-.5) = .5/.5 =1). In Las Vegas odds this would be given as 1to1, that is, one chance for to one chance against. When expressed as chance, it would be 1in2, that is, one chance in 2 of winning.
Now when a gambler says that the odds are 3to1, they mean that there are 3 chancesto win to 1 chance to lose. Alternatively, the gambler express this as the chance is 3in4,that is, 3 chances to win in 4 total chances.What they really mean is that theprobability is .75 (3/4 = .75) or that the statistical odds are 3 (odds = .75/(1-.75) = .75/.25 = 3).
You will also see Las Vegasodds of 3to2 (which is equivalent to 1.5to1, but you will never see it written this way). Oddsof 3to2 is just another way of saying that there are 3 chances of winning to 2 chances of losing.The gambler may also express odds of 3to2 as a chance of 3in5, that is, 3 chances to win in5 total chances. Whether given as odds of 3to2 or chance of 3in5 the statistical probability is .6 (3/5 = .6) and the statistical odds are 1.5 (odds = .6/(1-.6) = .6/.4 = 1.5).
The table below gives the Las Vegas (gambling) odds, chance, statistical odds and probability fora number of different combinations.