This is another problem that I am stuck on. Deals with pdf function.

4. A continuous random variable X hms the probability density function (pdf) fx(x) x2 , if O < x < I if I O , otherwise. (a) (4 points) Write down the CDF function, Fx(t), in functional form msshown in lecture. Remember to cover all cases. (b) (3 points) Find PCX < 4/3). (c) (4 points) Compute E(X).