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### 11 Cards in this Set

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 Statistically significant unlikly to have occured by chance Qualifying Statistical significance 0.05 (1-20) sig at the 0.05 level 0.01 (1-100) sig at the 0.01 level outcomes most basic results of observations or experiments Events Collection if one or more outcomes that share a property of interests expressing probabilty p event = 0 and 1 probability of 0 means that the event is impossiable Probability of 1 means that the event is certain Theoretical methods: P(a)= number of ways A can occur -------------------------- total number of outcomes Relative freq method P(A)= number of times A occured ----------------------- total number of observations Probability of the complement of an event P(A)= 1- P(A) Law of Large Numbers Repeated through many trials, proportion of the trails in which event A ocurs will be close to the probabitity P(A) Expected Values Expected Values = (valueof event1) x (prob of event 1) + (value of event 2)X(prob of event 2) Probability for independent events P(A and B)= P(A) X P(B)