Suppose that X1, X2, .. , Xm and Y1, Y2, .. , Yn are independent random samples from N(ux,o3) and N(uy, o?), respectively. a. Find E(X - Y). b. Find V(X -Y)

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Q: ) Describe the three possible solutions to a system of equations.

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Q: Solve the system X1 X2 X3 X4 +8 x1 x1 +x2 X2 +x3 x3 +x4 +x4 4 -5 -13

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A: A system of equations that use elimination to solve it and would get a solution of m=100 and n=0.