Q1. Suppose that the continuous random vector ( *: ) - N. ( ( 2 ) . ( is ? Find: Enter your answers as decimal numbers (4 decimal places are sufficient). (a) E(X) = 1 mark) (b) var(X]) = (1 mark) (c) E(X,)= (1 mark) (d) var(X,) = (1 mark) (e) the correlation, p(X1 X2) = 2 marks) (f) E(X X2 = - 0.9) = 1 mark) (@) var(X1 |X2 = - 0.9) = (2 marks)