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3.4 Descriptive Measures for Populations; Use of Samples For a particular variable on a particular population： 1.There is only one population mean—nam 阅读全文
posted @ 2019-07-20 21:04
YUANya
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3.3 The Five-Number Summary; Boxplots the deciles divide a data set into tenths (10 equal parts), the quintiles divide a data set into fififths (5 equ 阅读全文
posted @ 2019-07-20 18:58
YUANya
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