# Probability Calculator

Probability defines the likelihood of occurrence of an event.

## What is a Probability Calculator?

'Cuemath's Probability Calculator' is an online tool that helps to calculate the probability of a given event. Cuemath's online Probability calculator assists you to calculate the value of Probability in a few seconds.

## How to Use Probability Calculator?

Please follow the below steps to find the probability:

**Step 1:**Enter the number of favorable outcomes and the number of total outcomes in the given input boxes.**Step 2:**Click on the**"Calculate"**button to find the value of probability.**Step 3:**Click on the**"Reset"**button to clear the fields and enter the different values.

## How to Find a Probability Calculator?

**Probability **of an event is defined as the ratio of favorable outcomes to the total number of outcomes. The probability of any event always lies between 0 and 1. To calculate the probability of any event we divide the favorable outcomes by the total number of outcomes.

**Solved Example:**

What is the probability of selecting a black ball from a bag containing 4 yellow balls, 6 blue balls, 8 red balls, and 3 black balls?

**Solution:**

Total number of possible outcomes = 21

Favorable outcomes = 3

Probability = 3/21

Probability = 1/7 = 0.14

Thus, the probability of selecting a black ball from the given bag is 1/7 or 0.14