Perform the indicated matrix operations. If the matrix does not exist, write impossible

Study Guide Solutions – Baugh – Exam 2 For the discrete probability distribution shown: x 5 10 20 40 L1 25% 12% 15% 48% L2 P(X=x ) *Create Lists by pressing STAT then Edit #1* (a.) Find the mean () Sum(L1 * L2) = 24.650 *To calculate Sum, press 2dSTAT, go to MATH, and Sum is #5. To insert L1, press1...