Probability is a scale quantifying the possibility that events will occur. Probability qualifies as a number between 0 and 1, where 0 indicates even god can’t do that and 1 implies no one can stop that. Probability has a certain set of rules which go along while calculating the likelihood of any event.
The two important rules of probability are-When A and B are mutually exclusive events, the probability that A or B will occur is the sum of the probability of each event. Mutually exclusive events refer to events that can’t happen at the same time.
When A and B are non-mutually exclusive events, the probability that A or B will occur is P(A or B) = P(A) + P(B) – P(A and B). Non-mutually exclusive events refer to events A and B which have at least one common outcome between them.
In general, the probability of an event happening is the number of ways it can happen divided by the total possible number of outcomes. Various results of probability include Impossible, Unlikely, Even chance, Likely and Certain. To represent the probability of an event we can write P(A), p(A) or pr(A). Each event happening around us in our daily lives has a possibility of an event that it is likely to happen or not, whether it be reaching your classes on time or the result of a cricket match.
