Question
1. X , Y and Z are independent random variables with E(X ) = 0, E(Y ) = 1, E(Z = 2) and SD(X )
1. X , Y and Z are independent random variables with E(X ) = 0, E(Y ) = 1, E(Z = 2) and SD(X ) = 1, SD(Y ) = 1 and SD(Z) = 2. (a) E(3 X +2Y +4Z) = (b) V(4 X +2Y 3Z) = (c) SD(4 X +2Y 3Z) = (d) E(X Y Z) = (e) Calculate the SD(X Y )
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Geometry A Comprehensive Course A Comprehensive Course
Authors: Dan Pedoe
1st Edition
0486131734, 9780486131733
