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Monday, 10 November 2014

probability

Probability


Probability is a topic which is one of the topics which has quite difficult concepts. Therefore a lot of diligence is required get proficient in it. But once concepts are understood well, all that is required is a little practice.


Important concepts & formulas:


Experiment:
An operation which can produce some well-defined outcomes is called an experiment. Random Experiment: An experiment in which all possible outcomes are know and the exact output cannot be predicted in advance, is called a random experiment.
Examples: 1. Rolling an unbiased dice.
2. Tossing a fair coin.
3. Drawing a card from a pack of well-shuffled cards.






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