描述正态分布资料集中趋势的指标是 @font-face { font-family: 宋体; }@font-face { font-family: "Cambria Math"; }@font-face { font-family: Calibri; }@font-face { font-family: "@宋体"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; text-align: justify; font-size: 10.5pt; font-family: "Calibri", "sans-serif"; }.MsoChpDefault { font-size: 10pt; }div.Section1 { } A. 中位数 @font-face { font-family: 宋体; }@font-face { font-family: "Cambria Math"; }@font-face { font-family: Calibri; }@font-face { font-family: "@宋体"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; text-align: justify; font-size: 10.5pt; font-family: "Calibri", "sans-serif"; }.MsoChpDefault { font-size: 10pt; }div.Section1 { } B. 几何均数 @font-face { font-family: 宋体; }@font-face { font-family: "Cambria Math"; }@font-face { font-family: Calibri; }@font-face { font-family: "@宋体"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; text-align: justify; font-size: 10.5pt; font-family: "Calibri", "sans-serif"; }.MsoChpDefault { font-size: 10pt; }div.Section1 { } C. 算术平均数 @font-face { font-family: 宋体; }@font-face { font-family: "Cambria Math"; }@font-face { font-family: Calibri; }@font-face { font-family: "@宋体"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; text-align: justify; font-size: 10.5pt; font-family: "Calibri", "sans-serif"; }.MsoChpDefault { font-size: 10pt; }div.Section1 { } D. 标准差 @font-face { font-family: 宋体; }@font-face { font-family: "Cambria Math"; }@font-face { font-family: Calibri; }@font-face { font-family: "@宋体"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; text-align: justify; font-size: 10.5pt; font-family: "Calibri", "sans-serif"; }.MsoChpDefault { font-size: 10pt; }div.Section1 { }