-Compute the Mean Squared Deviation (MSD)

question 37

Essay

$$\begin{array} { c c c } \text { Week } & \text { Revenue } & \text { Forecasted Revenue } \\1 & 200 & 225 \\2 & 240 & 220 \\3 & 300 & 285 \\4 & 270 & 290 \\5 & 230 & 250 \\6 & 260 & 240 \\7 & 210 & 250 \\8 & 275 & 240\end{array}$$
-Compute the mean squared deviation (MSD).

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Definitions:

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