Final Notes

# Final Notes - 1 Probability a representative of larger...

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1. Probability a. representative of larger scale distribution b. the relative frequency of an outcome (X) c. P=probability d. X=specific outcome e. P(X)=probability of that specific outcome occurring f. Independent events-the 2 events do not alter the probability of the other occurring g. Dependent events-one event will alter the probability of another event, without replacement h. Mutually exclusive-no overlap between outcomes (drawing a spade or a heart, one or the other) p(x=a or x=b)=P(x=a)+P(x=b) i. Non-mutually exclusive-yes overlap between outcomes (drawing a spade or a jack, j. Sample question i. Bag 14 red, 23 blue, 13 black. What is probability of selecting 2 red marbles or 1 blue and 1 black marble (assume independence)? 1. Independence means throwing the draw back after recording data 2. P(2red)=(14/50)*(14/50)=.0784 3. 4. 2. sampling distributions

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Final Notes - 1 Probability a representative of larger...

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