stat test2 - Complement: All outcomes not in event....

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Complement: All outcomes not in event. Mutually Exclusive (Disjoint): two events that cannot occur at same time. P(A and B)=0 Conditional Probability: The probability an event occurs given another event has happened. P(A|B) P(A|B)= P(A and B)/P(B), P(B|A) = P(a and B)/P(A) If A and B are independent: P(A|B) = P(A) x P(B)/P(B)=P(A) Two events are independent if: P(AandB)= P(A) x P(B) P(A|B) = P(A) P(B|A) = P(B) Union of two events: P(A or B) => P(AuB) = P(A)+P(B)-P(A and B) P(AandB) => P(AnB) Random Variable: characteristics of an event in random space. -Discrete : Whole numbers: something you can count (whole numbers) - continuous: Something you measure Standard Deviation of a Discrete Variable: and the standard deviation is: EXAMPLE So the standard deviation would be the square root of 1.472, or 1.213 Binomial: There are a fixed number of trials (a fixed sample size). On each trial, the even of interest either occurs or does not. The probability of occurrence (or not) is the same on each trial.
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stat test2 - Complement: All outcomes not in event....

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