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Probability
| Term | Definition |
|---|---|
| Fundamental Principle of Counting | If one task can be accomplished in m ways and a second task can be accomplished in n ways, then the first task followed by the second task can be accomplished in mxn ways |
| Permutation | A way in which a number of things can be arranged |
| Combination | A selection of objects chosen from a given set |
| Event | A result we want from a number of outcomes |
| Sample Space | A set of all possible outcomes |
| Mutually Exclusive Events | Events that cannot occur together |
| Addition Law | P(A or B)= P(A) + P(B) |
| Exhaustive Events | A set of events containing all possible outcomes |
| Independent Events | Events where the outcome of the first event doesn't affect the outcome of the second event |
| Multiplication Law(AND rule) | P(A and B)= P(A) x P(B) |
| Conditional Probability | The probability of an event being dependant on the previous event |
| P(A|B)= | P(A and B)/P(B) |
| General Multiplication Law | P(A and B)= P(A) x P(B|A) or P(B) x P(A|B) |
| Relative Frequency | Number of successful trials/total number of trials (in decimal form) |
| Expected Frequecy | Probability x Number of Trials |
Created by:
OscarE
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