ndependent random variables X and Y have the means and standard deviations as given in the table to the right. Use these parameters to find the expected value and SD of the following random variables that are derived from X and Y. Complete parts (a) through (d). Mean SD
Х 2000 200
Y 4000 600
(a) E(2X – 100) = ___
SD(2X - 100) = ___
(Round to two decimal places as needed.)