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Probability of an Event Formula

P(A)=Number of Favorable Outcomes/Total Number of Possible Outcomes
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What is Probability of an Event?

In an experiment, the probability of an event is the likelihood of that event occurring. A gambler's dispute in 1654 led to the creation of a mathematical theory of probability by two famous French mathematicians, Blaise Pascal and Pierre de Fermat. Probability is a value between (and including) zero and one. If P(E) represents the probability of an event E, then: P(E) = 0 if and only if E is an impossible event while P(E) = 1 if and only if E is an certain event.

How to Calculate Probability of an Event?

Probability of an Event calculator uses P(A)=Number of Favorable Outcomes/Total Number of Possible Outcomes to calculate the P(A), The probability of an event is the likelihood of that event occurring. P(A) and is denoted by P symbol.

How to calculate Probability of an Event using this online calculator? To use this online calculator for Probability of an Event, enter Number of Favorable Outcomes (n(E)) and Total Number of Possible Outcomes (n(S)) and hit the calculate button. Here is how the Probability of an Event calculation can be explained with given input values -> 0.9375 = 15/16.

FAQ

What is Probability of an Event?
The probability of an event is the likelihood of that event occurring and is represented as P=n(E)/n(S) or P(A)=Number of Favorable Outcomes/Total Number of Possible Outcomes. Number of Favorable Outcomes is the number of times the outcome of interest comes and Total Number of Possible Outcomes is the total number of outcomes that may occur by performing some task.
How to calculate Probability of an Event?
The probability of an event is the likelihood of that event occurring is calculated using P(A)=Number of Favorable Outcomes/Total Number of Possible Outcomes. To calculate Probability of an Event, you need Number of Favorable Outcomes (n(E)) and Total Number of Possible Outcomes (n(S)). With our tool, you need to enter the respective value for Number of Favorable Outcomes and Total Number of Possible Outcomes and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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