If the price of a TV is $400, the price of a stereo is $300, the price of a VCR is $250, and the price of a camcorder is $500, use vector multiplication to find the value of stock for outlet 2 in Problem 5.3.

The value of stock is V = QP. The physical volume of stock in outlet 2 in vector form is Q = [80 65 50 38]. The price vector P can be written

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400 300 P = 250 .500. The product QP is defined: 1 x 4 = 4 x 1. Thus, V=QP = 80(400) + 65(300) + 50(250) + 38(500) = 83,000