Probability - ESSENTIAL POINTS


  • It’s a measure of the chance of occurrence of a particular outcome in an experiment.
  • Each toss/throw of a coin is called a trial.
  • Getting of a head/tail in a particular throw is an event.
  • Based on what we directly observe as the outcomes of our trials, we find the experimental or empirical probability.
  • The experimental (or empirical) probability of an event E (denoted by P(E)) is given by

  • Probability
  • The probability of an event E can be any number from 0 to 1. It can also be 0 or 1 in some special cases.

I am in