Event Probability Calculator

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**Step 1 :**

Probability is a part of mathematics related with random phenomenon. Event Probability Calculator is an online tool to find the probability of single event. It takes the number of events and number of equally likely possible outcomes are given and calculates the probability of a single outcome.

This calculator assumes that all the possible outcomes are equally likely to happen. So, it works only for those experiments in which all the possible outcomes are equally likely to happen. For example - rolling a dice, tossing a coin etc.

Observe the total possible outcomes[n(S)] and number of event occurs[n(E)].

Now, find p(A) = probability of A by using formula =$\frac{n(E)}{n(s) }$

and p(A') = probability of event that does not occurs = 1 - p(A)