Computing Cumulative Function,
Mean, and Variance
5. A continuous random variable
has a probability density function: f(x) = Ax^2 for 0 (less than or equal to) x
(less than or equal to) 3.
(a) What is the value of A?
(b) What is the cumulative
probability function of random variable x?
(c) What is the expected value?
(d) What is the variance of the
random variable?





