Elementary Statistics ch.4 formulas Flashcards
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| 1879804426 | Formula of Classical Probability | P(E) = # of fav outcomes # of all outcomes | 0 | |
| 1879813342 | Formula for empirical probability | P(E) = frequency for class Total frequencies in distribution | 1 | |
| 1879817557 | Two mutually exclusive events | P(A or B) = P(A) + P(B) | 2 | |
| 1879822570 | Not mutually exclusive events | P(A or B) = P(A) + P(B) - P(A and B) | 3 | |
| 1879827548 | Multiplication rule for independent events | P(A and B) = P(A) • P(B) | 4 | |
| 1879835534 | Multiplication rule for dependant events | P(A and B) = P(A) • P(B|A) | 5 | |
| 1879840966 | Conditional Probability | P(B|A) = P(A and B) P(A) | 6 | |
| 1879847026 | Complementary events | P(Ē) = 1 - P(E) | 7 | |
| 1879850710 | Permutation (order is important) | nPr = n! (n-r)! | 8 | |
| 1879857197 | Combination (order is not important) | nCr = n! (n-r)! r! | 9 |