Transcription of Basic Statistics Formulas - Integral Table
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Basic Statistics Formulas - Integral Table
Basic Statistics FormulasPopulation MeasuresMean =1n xi(1)Variance 2=1n (xi x)2(2)Standard Deviation = 1n (xi x)2(3)SamplingSample meanx=1n xi(4)Sample variances2x=1n 1 (xi x)2(5)Std. Deviationsx= 1n 1 (xi x)2(6)z-scorez=x (7)Correlationr=1n 1n i=1((xi x)sx)((yi y)sy)(8)Linear RegressionLine y=a+bx(9)b=rsysx,a=y bx(10)s= 1n 2n i=1(yi y)2(11)SEb=s n i=1(xi x)2(12)To testH0:b= 0,uset=bSEb(13)CI=b t SEb(14)ProbabilityP(AorB) =P(A) +P(B) P(AandB)(15)P(notA) = 1 P(A)(16)P(AandB) =P(A)P(B) (independent)(17)P(B|A) =P(AandB)/P(A)(18)0! = 1;n! = 1 2 3 (n 1) n(19)(nk)=n!
Table Entry Standard Normal Cumulative Proportions (below) TailArea 1-C 2 AreaC t-Distribution Critical Values (to right) Standard Normal Cumulative Proportions
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