Introduction

Probability:

Probability is the study of the uncertainty. The uncertainty of any doubtful situation is measured by means of Probability.

Uses of Probability:

Probability is used in many fields like Mathematics, Physical Sciences, Commerce, Biological Sciences, Medical Sciences, Weather Forecasting, etc.

Basic terms related to Probability:

1. Randomness:

If we are doing an experiment and we don't know the next outcome of the experiment to occur then it is called a Random Experiment.

2. Trial:

TrialA trial is that action whose result is one or more outcomes. Like, Throw of a dice, Toss of a coin.

3. Independent trial:

A trial will be independent if it does not affect the outcome of any other random trial.

Like throwing dice and tossing a coin are independent trials as they do not impact each other.

4. Event:

While doing an experiment, an event will be the collection of some outcomes of that experiment.

Example:

If we are throwing a dice then the possible outcome for even number will be three i.e. 2, 4, 6. So the event would consist of three outcomes.