Probability and mathematics go hand in hand. Every unit is not determined to be a correct one but the basis of it lies on the probability check on the digits. When one learns how to calculate probability, one understands that it is use of logic and simple maths. 

Definition of Probability of events. 

Probability can be defines as the means of chances or the likelihood of the occurrence of an event. It can be considered to be a numerical value that is lying between 0 and 1.  When an event is impossible then the probability of occurring that event is considered to be 0, when the event is full 100% sure then the probability of occurring in that event is 1 and all other events will have probability between 0 and 1 again. 

The most important thing that you need to consider before learning how to calculate probability terms is by understanding that Probability is based on certain observations of certain events that occur. Probability can be considered an event where the ratio of the number of observations of the event as raised to the total number of the observations gives you the probability. An experiment is a situation involving chance or the probability that leads to results called outcomes. An outcome can be termed as a result of a single trial of the experiment. The probability of a particular event is the measure of the chance or the probability that the event will occur as a result of an experiment that is done. 

Let’s learn how to calculate probability?

Probability can be termed as the measure of how likely an event is. And an event is considered to be one or more outcomes of a particular experiment. Probability formula is the ratio of number of the favorable outcomes that lead to the total number of possible outcomes.

Probability of an Event = Number of Favourable Outcomes/ Total Number of Possible Outcomes
This Measures the likelihood of an event in the following way:

   - If Probability (A) > Probability (B) then event A is more likely to occur than the event B.
   - If Probability (A) = Probability (B) then events A and B are equally likely to occur. 

How to calculate probability of getting a head when tossing a coin
Total number of possible outcomes= 2
Number of Favourable Outcomes= 1
So the Probability of the event is ½. 



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