00000099.htm

来自「matlab 问题集,所有matlab的问题收集」· HTM 代码 · 共 32 行

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<?xml version="1.0" encoding="gb2312"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"/><title>Re: 请问如何求标准方差?谢谢           hjdwg </title></head><body><center><h1>BBS 水木清华站∶精华区</h1></center><a name="top"></a>发信人:&nbsp;xueY&nbsp;(学习),&nbsp;信区:&nbsp;MathTools&nbsp;<br />标&nbsp;&nbsp;题:&nbsp;Re:&nbsp;请问如何求标准方差?谢谢&nbsp;<br />发信站:&nbsp;BBS&nbsp;水木清华站&nbsp;(Wed&nbsp;Jul&nbsp;14&nbsp;01:54:21&nbsp;2004),&nbsp;站内&nbsp;<br />&nbsp;<br />std(x)&nbsp;<br />&nbsp;<br />&nbsp;<br />【&nbsp;在&nbsp;evolog&nbsp;(爬到曲线端)&nbsp;的大作中提到:&nbsp;】&nbsp;<br />∶<i>&nbsp;已知变量x及其平均值,怎么求标准方差?以前学过的,忘记了,请指教。&nbsp;</i><br />&nbsp;<br />&nbsp;<br />--&nbsp;<br />&nbsp;<br />※&nbsp;来源:·BBS&nbsp;水木清华站&nbsp;smth.org·[FROM:&nbsp;202.192.159.*]&nbsp;<br /><a href="00000098.htm">上一篇</a><a href="javascript:history.go(-1)">返回上一页</a><a href="index.htm">回到目录</a><a href="#top">回到页首</a><a href="00000100.htm">下一篇</a></h1></center><center><h1>BBS 水木清华站∶精华区</h1></center></body></html>

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