Question

In the Ministry of Roads and Highways, contracts for two constructions jobs are
randomly assigned to one or more of three rms namely, A;B and C. Suppose that X
is the number of contracts assigned to rm A and Y is the number of contracts assigned
to rm B. It is assume that each rm can receive 0; 1; or 2 contracts. Compute the
expected value of XY , i.e. E(XY ).

Answer 1

$E(XY)=\Sigma_{i=1}^3x_iy_iP(x_iy_i)$