## Probability Single Event Calculator

Use this calculator to find the probability of single event for the given values of total number of outcomes and number of favorable outcomes to an event.

Probability Single Event Calculator | |
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Number of Possible Outcomes $n(S)$: | |

Number of outcomes for event A $n(A)$: | |

Results | |

Probability of happening A :$P(A)$ | |

Probability of not happening A : $P(A^\prime)$ | |

## Probability Single Event Calculator

`$$ \begin{aligned} P(A) = \dfrac{n(A)}{n(S)}. \end{aligned} $$`

`$$ \begin{aligned} P(A^\prime) = 1-\dfrac{n(A)}{n(S)}=1-P(A). \end{aligned} $$`