Statistical Description of Data ppt课件内容预览:Describe data using measures of central tendency and dispersion:for a set of individual data values,andfor a set of grouped data.Convert data to standardized values.Use the computer to visually represent data.Use the coefficient of correlation to measure association between two quantitative variables.Chapter 3- KeyTermsMeasures of CentralTendency,TheCenterMeanμ,population;,sampleWeightedMeanMedianMode(Note comparison of mean,median,and mode)Chapter 3- KeyTermspptMeasures ofDispersion,TheSpreadRangeMean absolute deviationVariance(Note the computational difference between s2and s2.)Standard deviationInterquartile rangeInterquartile deviationCoefficient of variationChapter 3- KeyTermsMeasures of RelativePositionQuantilesQuartilesDecilesPercentilesResidualsStandardized valuesChapter 3- KeyTermsMeasures ofAssociationCoefficient of correlation,rDirection of the relationship:direct (r >0)or inverse (r
课件关键字:Statistical Description of Dat。
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