Ключевые слова: probability, odds, software, calculate, hypergeometric, formula, lotto, Powerball, Mega Millions, Euromillions, horses, horse racing

Odds Calculator is the most complex software to calculate all probabilities (odds) for any lotto game and horse racing. It covers regular lotto games (e.g. 6 of 49), Keno, Powerball, Mega Millions, Euromillions, CA SuperLotto Plus, etc.

The calculations are based on the hypergeometric probability distribution. The odds are calculated as k of m in p from N. The calculations, unlike in any other program, are performed as exactly and as at least.

More clearly, let's suppose a lotto 6/49 game. The lottery draws 6 winning numbers. The player must play exactly 6 numbers per ticket. But the player can choose to play a pool of 10 favorite numbers.

What is the probability to get 4 of 6 in 10 from 49? The odds: 1 in 90.

The calculations, unlike in any other program, are performed as exactly and as at least.

The general hypergeometric formula for the as exactly case:
P(m of k in s from n) = [C(n, k)] / C(s, m) * C(n-s, k-m)
The hypergeometric distribution probability formula has restrictions. Some cases are impossible; e.g. exactly 1 of 6 in 10 from 10.
This piece of software runs the extra mile and puts together multiple cases and does calculate precisely the odds as at least situations.
Most common lotto games draw 6 winning numbers most commonly from a field of 49 numbered balls. OddsCalc.EXE does handle such lottos, plus games that draw 4 winning numbers, or 5, or 7 winning numbers, etc. You can calculate the odds for countless situations, such as 39 from 49 or 50 from 55, etc.
The program requires just a few parameters. They are easy to understand and explained in detail on the input screens. Say, you want to calculate all possible odds for a 6-49 lotto game, with no pool of extra numbers (i.e. calculate the odds for a 6-number pool, exactly the number of winning lotto numbers drawn by the lottery commission). The biggest lotto number: 49; How many lotto numbers per combination: 6; How many lotto numbers in the pool: 6.