STA256H5 Lecture : Bivariate Expected Values, Product Moments, Covariance, Correlation, Independent Random Variables, Linear Combination

Which of the following involves assigning a problem to those higher in the support chain?

1. Ticket logging
2. Problem escalation
3. Responsibility passing
4. Issue resolution

X . Then the linear system AX = B has: -1 a la 11. Let A= Ia a-2 J [ 22 (A) a unique solution if and only if a +-2. (B) a unique solution if and only if a + 1. (C) more than one solution if a = -2. (D) no solution if a = 2. (E) more than one solution if a = 1. (As usual, only one of the above statements is true!)