12th Class Chapter No 13 - Probability in Maths for CBSE NCERT
Sample Space: The set of all possible outcomes of a random experiment. It is denoted by the symbol S. Sample points: Elements of the sample space. Event: A subset of the sample space. Impossible Event: The empty set. Sure Event: The whole sample space. Complementary event or "not event": The set "S" or S – A. The event A or B: The set A B. The event A and B: The set A B. The event A but not B: A – B. Mutually exclusive events: A and B are mutually exclusive if A B = . Exhaustive and Mutually exclusive events: Events E1, E2,…….., En are mutually exclusive and exhaustive if E1 E2 ……. En = S and Ei Ej = for all . Exiomatic approach to probability: To assign probabilities to various events, some axioms or rules have been described.
Sample Space: The set of all possible outcomes of a random experiment. It is denoted by the symbol S. Sample points: Elements of the sample space. Event: A subset of the sample space. Impossible Event: The empty set. Sure Event: The whole sample space. Complementary event or "not event": The set "S" or S – A. The event A or B: The set A B. The event A and B: The set A B. The event A but not B: A – B. Mutually exclusive events: A and B are mutually exclusive if A B = . Exhaustive and Mutually exclusive events: Events E1, E2,…….., En are mutually exclusive and exhaustive if E1 E2 ……. En = S and Ei Ej = for all . Exiomatic approach to probability: To assign probabilities to various events, some axioms or rules have been described.
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