Answer Happy

Which of the following would NOT be among the reasons for using simulation? 1.Obtaining optimal solutions for different scenarios II.Establishing the relationship between the variables is nonlinear III. Conducting experiments without disrupting the real system IV.Studying alternative solutions to a problem Select one: O a. IV only O b. ll only O c. ll & Ill only d. I only
If ED denotes the expected value, which of the following is/are TRUE? L.E[XY] = E(XJE [Y] if x and y are independent. II.the variance can be calculated without knowing the value of E[X] I.the variance of a random variable X is denoted as E[x3-LE[X]? IV.E[XY] = E[X] - E[Y] if x and y are mutually exclusive a Select one: a. I, III & IV only b. I only c. I & Ill only d. Il only