Introduction of probability
The conception of probability mathematics is emerged in real world due to uncertainty. In real life peoples found a great range of uncertainty ab out any outcome. The uncertainty exists in all of the field surrounding us. Uncertainty, exists in physics, mathematics, chemistry, economics, social science as well as in contest of cosmos. If we sure about any consequence of happening, it may not happen at all. That is uncertainty. The uncertainty of real world leads to emergence of probability mathematics.
Probability
Simply, probability means the chance of occuring of any consequence. If you toss a coin there have a two chance of happening of two consequence. Either, result of coin tossing may be head or tail. What should be happening of head in coin tossing. The probability of happening of head is half and probability of happening of tail is half.
Some basic concepts of probability
Experiment
The term experiment is doing something and no need it to define as otherwise, rather thinking as an experiment of physics, chemistry or other sciences in order to achieve outcome. You have toss a coin, that means you have done an experiment. You have started a business, that means you have done an experiment.
Sample space
Sample space is a set of all possible outcome from an experiment. The possible outcome of a coin tossing are head and tail. The set of head and tail for the experiment of coin tossing is termed as sample space. You have started a business, two outcome may happen. One is success and another is failure. The set of the outcome in a business that you have started recently is called sample space.
Event
In an experiment, each individual outcome is called happening or event.