# Probability Calculator

**Probability**is a measure of occurrence of an event. Probability always lie between the value 0 and 1. If the probability of an event is higher , the more certain will be the event to occur. An event can have one or more outcomes.

Definition of Probability:

Definition of Probability:

If an experiment produces "N" equally likely outcomes and "n" are favorable outcomes of an event E, then the probability of E is given as

$P(E) = $$\frac{ Number of favorable outcomes}{ Number of total possible outcomes}$ = $\frac{n}{N}$

**Example:**

Find the probability of tossing two coins simultaneously and obtaining two tail.

**Solution:**Possible outcomes = {

**HH, HT, TH, TT**}

Favorable outcomes =

**1**

P(2 tail) = $\frac{1}{4}$