求高手计算概率问题
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解:5个数时:
1个1概率:C(5,1)*0.5^1*0.5^4=0.15625
2个1概率:C(5,2)*0.5^2*0.5^3=0.3125
3个1概率:C(5,3)*0.5^3*0.5^2=0.3125
4个1概率:C(5,4)*0.5^4*0.5^1=0.15625
5个1概率:C(5,5)*0.5^5*0.5^0=0.03125
4个数时:
1个1概率:C(4,1)*0.5^1*0.5^3=0.0.25
2个1概率:C(4,2)*0.5^2*0.5^2=0.375
3个1概率:C(4,3)*0.5^3*0.5^1=0.25
4个1概率:C(4,4)*0.5^4*0.5^0=0.0.0625
6个数时:
1个1概率:C(6,1)*0.5^1*0.5^5=0.09375
2个1概率:C(6,2)*0.5^2*0.5^4=0.234375
3个1概率:C(6,3)*0.5^3*0.5^3=0.3125
4个1概率:C(6,4)*0.5^4*0.5^2=0.234375
5个1概率:C(6,5)*0.5^5*0.5^1=0.09375
6个1概率:C(6,6)*0.5^6*0.5^0=0.015625
打字不易,如满意,望采纳。
1个1概率:C(5,1)*0.5^1*0.5^4=0.15625
2个1概率:C(5,2)*0.5^2*0.5^3=0.3125
3个1概率:C(5,3)*0.5^3*0.5^2=0.3125
4个1概率:C(5,4)*0.5^4*0.5^1=0.15625
5个1概率:C(5,5)*0.5^5*0.5^0=0.03125
4个数时:
1个1概率:C(4,1)*0.5^1*0.5^3=0.0.25
2个1概率:C(4,2)*0.5^2*0.5^2=0.375
3个1概率:C(4,3)*0.5^3*0.5^1=0.25
4个1概率:C(4,4)*0.5^4*0.5^0=0.0.0625
6个数时:
1个1概率:C(6,1)*0.5^1*0.5^5=0.09375
2个1概率:C(6,2)*0.5^2*0.5^4=0.234375
3个1概率:C(6,3)*0.5^3*0.5^3=0.3125
4个1概率:C(6,4)*0.5^4*0.5^2=0.234375
5个1概率:C(6,5)*0.5^5*0.5^1=0.09375
6个1概率:C(6,6)*0.5^6*0.5^0=0.015625
打字不易,如满意,望采纳。
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