A random variable XXX has PDF f(x)=2xf(x) = 2xf(x)=2x for 0≤x≤10 \leq x \leq 10≤x≤1. What is F(0.5)F(0.5)F(0.5)?
0.250.250.25
0.500.500.50
0.750.750.75
1.001.001.00