Formulas for AP Statistics

III. Sampling Distributions and Inferential Statistics (continued) Sampling distributions for proportions: Random Variable Parameters of Sampling Distribution Standard Error* of Sample Statistic For one population: pˆ µ pˆ = p ( ) ˆ 1 p pp n σ − = ( ) ˆ ppˆˆ1 s n − = For two populations: 12 p pˆˆ− ˆˆpp12 12 µ p p ... ................
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