Values are mean±SD什么意思

Values are mean±SD什么意思 在统计学里这个符号±是什么意思?比如 Mean±SD 5.50±1.22比如 Mean±SD 5.50±1.22有时候还会看到Mean(SD)用括号表示 5.50(1.22)那为什么会这样呢？有什么区别？ Mean±SD如何计算本人不是学数学的,但是写论文要计算Mean±SD ,如何计算,例：23,23,19,20 求Mean±SD mean±SD,p值标在什么位置?一般文献中都是这样标注的,比如23.25±1.27*,表示p mean±SD, p值标在什么位置? 一般文献中都是这样标注的,比如23.25±1.27*, 表示p 统计简单计算题(英文)Ten values have a mean of 75. Nine of the values are 62,78,90,87,56,92,70,70 and 93,Fine the tenth value. what are you mean?和what do you mean?有什么区别?what are you mean?这句话有错吗? 英语翻译Sea -level rise must be expressed as a range of values that are under constant reassessment.The IPCC forecast for global mean sea-level rise this century is from 0.11 -0.88 m.mean在句子里是什么意思? values you are handsome,do you know what mean什么意思 you are mean SD news 什么意思 SPCC-SD表示什么 SD敢达抽机有什么规律? RD SD 什么作用 SD什么意思? 英语翻译The XALL?query returns the values of the mean,rel,jitterl,max,and min of the last completed measurement.These numbers are returned as one string with the individual numbers separatedby commas. 数理统计英文题目Let X1 and X2 has bivariate normal distribution with mean values are 0,variances 1 and correlation 0.5Let Y1=3^(-0.5) (X1+X2) and Y2=X1-X2,findP(0,1