Single Probability Calculator

Formulas:

For decimal odds of 2.00 or greater, the formula is as follows: (decimal odds - 1). 100 = American odds. For decimal odds between 1.01 and 1.99, the formula is as follows: -100 / (decimal odds. For example, the odds of winning the US Powerball lottery jackpot are about 1 in 292 million (1/292,201,338) where 292,201,338 is total number of possible combinations. The order in most lottery draws does not matter. If we examine the poker example further: a poker hand can be described as a 5-combination of cards from a 52-card deck.

• Probability of event A occurring P(A) = n(A) / n(S).
• Probability of event A not occurring P(A') = 1 - P(A).

Formulas:

• Probability of event A occurring P(A) = n(A) / n(S).
• Probability of event A not occurring P(A') = 1 - P(A).
• Probability of event B occurring P(B) = n(B) / n(S).
• Probability of event B not occurring P(B') = 1 - P(B).
• Probability of both events occurring P(A ∩ B) = P(A) x P(B).
• Probability of either events occurring P(A ∪ B) = P(A) + P(B) - P(A ∩ B).
• Conditional Probability P(A B) = P(A ∩ B) / P(B).

Example Multiple Probability Calculation

Find multiple event probabilitiy, given n(s) = 50, n(A) = 10 and n(B) = 5

• P(A) = 10/50 = 0.2
• P(A') = 1-0.2 = 0.8
• P(B) = 5/50 = 0.1
• P(B') = 1-0.1 = 0.9
• P(A ∩ B) = 0.2 *0.1 = 0.02
• P(A ∪ B) = ( 0.2 + 0.1 ) - 0.02 = 0.28
• P(A B) = 0.02 / 0.1 = 0.2

A parlay is a single bet that links together two or more individual wagers for a high payout. A 2 team parlay might pay 13/5, a three team parlay might pay 6/1, a four team parlay might pay 10/1, and so forth with the payouts getting higher with more teams or totals selected. For a single bet, 2 to 8 teams or totals can be selected.

In order for the parlay bet to win, every one of the wagers must win or push (tie). If any of the selections lose, your wager loses, regardless of the outcome or cancellation of the other games. If one or more selections is a tie, postponed, incomplete, cancelled or rescheduled for another day, then the wager reverts to the next lowest number. For example, if you place a 5 team parlay and have 4 winners and a tie, your wager pays out as a 4 team parlay. If you place a 2 team parlay and one team wins and one ties, the wager becomes a straight bet.

6 1 Odds Calculator Percentage

The resulting wager will have the same risk amount with the win being calculated to reflect the odds of the remaining team (Example: On a two team $100 parlay with team A +110 and team B -110 if A ties and B wins the resulting wager will be a straight play on B risking $100 to win $91).