第1个回答 2014-05-24
F(x)=1-e^(-x)＝第一问
Y=X^2
P{Y<=y}=P{x^2<=y}=P{-根号y<=x<=根号y}=F(根号y)-F(-根号y)=e^(根号y)-e^(-根号y)=G(y)
G'(y)=(0.5/根号y)*[e^(根号y)+e^(-根号y)]=第二问
Y=X^2
P{Y<=y}=P{x^2<=y}=P{-根号y<=x<=根号y}=F(根号y)-F(-根号y)=e^(根号y)-e^(-根号y)=G(y)
G'(y)=(0.5/根号y)*[e^(根号y)+e^(-根号y)]=第二问
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