Let XXX be discrete with support {1, 2, 3} and CDF values F(1)=0.3,F(2)=0.6,F(3)=1F(1)=0.3, F(2)=0.6, F(3)=1F(1)=0.3,F(2)=0.6,F(3)=1. What is E[X]E[X]E[X]?
1.7
2
2.3
2.1