Question 1169755
the sample set is 1/4/9/16/25/36
So p(X<15) is 0.5
p(3<=x<30) is 2/3 , involving 4/9/16/25 but not 1 and 36.
p(1)=1/6=p(4)=p(9)=p(16)=p(25)=p(36)