問題已解決
老師,2%=P*42.21%+(1-P)*-29.68%這式子是怎么得出P=0.4407的上行概率?數(shù)學(xué)學(xué)得不好,也都還給數(shù)學(xué)老師了
![](https://member.chinaacc.com/homes/resources/images/home/avatar/2.jpg)
![](/wenda/_nuxt/img/iconWarn.60bd4fe.jpg)
![](https://pic1.acc5.cn/000/01/84/99_avatar_middle.jpg?t=1714028667)
你好,請稍等,我寫一下發(fā)給你哦
2020 02/12 14:52
![](https://pic1.acc5.cn/000/01/84/99_avatar_middle.jpg?t=1714028667)
樸老師 ![](/wenda/_nuxt/img/reply2.28c7604.png)
![](/wenda/_nuxt/img/reply2.28c7604.png)
2020 02/12 15:00
你好,請看下圖片上的計算過程哦
![](https://pic1.acc5.cn/000/01/84/99_avatar_middle.jpg?t=1714028667)
樸老師 ![](/wenda/_nuxt/img/reply2.28c7604.png)
![](/wenda/_nuxt/img/reply2.28c7604.png)
2020 02/12 15:00
滿意請給五星好評,謝謝
![](http://member.chinaacc.com/homes/resources/images/home/avatar/2.jpg)
84784982 ![](/wenda/_nuxt/img/reply1.d92ea43.png)
![](/wenda/_nuxt/img/reply1.d92ea43.png)
2020 02/12 19:12
明白了,謝謝老師
![](https://pic1.acc5.cn/000/01/84/99_avatar_middle.jpg?t=1714028667)
樸老師 ![](/wenda/_nuxt/img/reply2.28c7604.png)
![](/wenda/_nuxt/img/reply2.28c7604.png)
2020 02/12 20:22
不用客氣,滿意請給五星好評,謝謝
![](/wenda/img/newWd/sysp_btn_eye.png)