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两个实习生每人加工一个零件.加工为一等品的概率分别为和,两个零件是否加工为一等品...
两个实习生每人加工一个零件.加工为一等品的概率分别为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212963334/SYS201310251237212129633011_ST/0.png)
和
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212963334/SYS201310251237212129633011_ST/1.png)
,两个零件是否加工为一等品相互独立,则这两个零件中恰有一个一等品的概率为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212963334/SYS201310251237212129633011_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212963334/SYS201310251237212129633011_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212963334/SYS201310251237212129633011_ST/4.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212963334/SYS201310251237212129633011_ST/5.png)
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212963334/SYS201310251237212129633006_ST/2.png)
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123721212963334/SYS201310251237212129633006_ST/3.png)
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