P(X≥0)=1-F(0-) = 1 - (1/3+d) = (2-3d)/3P(0≤X≤1)=F(1) -F(0-)=( 2/3 +d) -(1/3+d)=1/3P(0≤X≤1) /P(X≥0) = 1/ (2-3d)