F(x)的图形如下所示 x<4 F(x)=P≤x)=1 (x-4)4≤x<10 x≥10 F(x 0 105 F(x)的图形如下所示       -    =  = 1 10 ( 4) 4 10 6 1 0 4 ( ) ( ) x x x x F x P x x 0 F(x) 4 10 x