Question 8 Consider the following probability density function for a continuous random variable. Question 9 Consider the following cumulative distribution function for a continuous random variable. Tries remaining: Tries remaining: f (x ) = kxz if -1 5 x 54, 5 F(x) = if 1 5 x 2 ) = P (2 0.5) = (b) Find the expected value and median. (Round your answers to 4 decimal places, if needed.) E(X) = median = (c) Find the expected value and median. (Round your answers to 4 decimal places, if needed.) (c) Find E(X2), the variance, and the standard deviation. (Round your answers to 4 decimal places, if needed.) E(X) = median = E ( X 2 ) = (d) Find E(X2), the variance, and the standard deviation. (Round your answers to 4 decimal places, if needed.) V(X ) = E(X2) = SD(X) = V( X ) = SD(X) = Check