当前位置:财税问题 >
實(shí)務(wù)
问题已解决
老師請問財(cái)管的方差計(jì)算公式的講解,怎么計(jì)算的求老師講解一下呢,我用計(jì)算器計(jì)算就是算不出結(jié)果,
![](https://member.chinaacc.com/homes/resources/images/home/avatar/1.jpg)
![](/wenda/_nuxt/img/iconWarn.60bd4fe.jpg)
![](https://pic1.acc5.cn/010/56/93/55_avatar_middle.jpg?t=1651204062)
有沒有具體的例子,同學(xué)。
2020 04/05 11:29
![](http://member.chinaacc.com/homes/resources/images/home/avatar/1.jpg)
84785041 ![](/wenda/_nuxt/img/reply1.d92ea43.png)
![](/wenda/_nuxt/img/reply1.d92ea43.png)
2020 04/05 11:32
0.2*(0.15-0.09)^2+0.6*(0.1-0.09)^2+0.2*(0-0.09)^2=?
![](https://pic1.acc5.cn/010/56/93/55_avatar_middle.jpg?t=1651204062)
文靜老師 ![](/wenda/_nuxt/img/reply2.28c7604.png)
![](/wenda/_nuxt/img/reply2.28c7604.png)
2020 04/05 11:45
同學(xué),注意負(fù)數(shù)的平方數(shù)是正數(shù)。
FAILED
![](http://member.chinaacc.com/homes/resources/images/home/avatar/1.jpg)
84785041 ![](/wenda/_nuxt/img/reply1.d92ea43.png)
![](/wenda/_nuxt/img/reply1.d92ea43.png)
2020 04/05 11:48
哦哦我弄成負(fù)數(shù)了
![](https://pic1.acc5.cn/010/56/93/55_avatar_middle.jpg?t=1651204062)
文靜老師 ![](/wenda/_nuxt/img/reply2.28c7604.png)
![](/wenda/_nuxt/img/reply2.28c7604.png)
2020 04/05 11:53
嗯,負(fù)數(shù)的平方是正數(shù),同學(xué)
![](http://member.chinaacc.com/homes/resources/images/home/avatar/1.jpg)
84785041 ![](/wenda/_nuxt/img/reply1.d92ea43.png)
![](/wenda/_nuxt/img/reply1.d92ea43.png)
2020 04/05 11:54
好的,謝謝老師
![](https://pic1.acc5.cn/010/56/93/55_avatar_middle.jpg?t=1651204062)
文靜老師 ![](/wenda/_nuxt/img/reply2.28c7604.png)
![](/wenda/_nuxt/img/reply2.28c7604.png)
2020 04/05 11:54
不客氣,有問題交流,沒問題請五星好評哦
![](/wenda/img/newWd/sysp_btn_eye.png)