This topic has been archived. It cannot be replied.
-
工作学习 / 求学深造 / 请教: 1,2,3,4,5 的standard deviation怎么算? 公式都忘了,,,,,谢了先
-falcon(令狐葱);
2002-9-19
(#755366@0)
-
求mean，然后(1/n-1 * 求和(xi-mean)^2)^1/2
xi是每个数字。
-heian(㊣黑暗-无线动力®);
2002-9-19
{47}
(#755374@0)
-
thx ,,, 突然发觉看公式也有点累了,,,不时是福是火,,,,哎,,,,,,
-falcon(令狐葱);
2002-9-19
(#755380@0)
-
是2分之根号10吧？
-heian(㊣黑暗-无线动力®);
2002-9-19
(#755382@0)
-
Bingo !
-falcon(令狐葱);
2002-9-19
(#755392@0)
-
Use Excel: Tool - Data Analysis. It will give you some statistic analysis results, including Standard Deviation.
-triplestones(Rover);
2002-9-19
(#755655@0)
-
Minitab is also a great tool if you do statistic analyses a lot.
-turtle168(≈▲∆▲八海山);
2002-9-19
(#755780@0)