Probability is the measure of the likelihood that an event will occur. It is quantified as a number between 0 and 1, where, loosely speaking, 0 indicates impossibility and 1 indicates complete certainty.The higher the probability of an event, the more likely it is that the event will occur. A simple example is the tossing of a fair (unbiased) coin. Since the coin is fair, the two outcomes ("heads" and "tails") are both equally probable; the probability of "heads" equals the probability of "tails"; and since no other outcomes are possible, the probability of either "heads" or "tails" is 1/2 (which could also be written as 0.5 or 50%).
This video deals with variety of events that occurs in probability and there are questions based on fourexperiments:
1. Coin experiment
2. Ball experiment,
3. Dice experiment and
4. Card experiment