You are examining a group of 6 stocks within an industry. The industry average profit margin is expected to be 30%. For these stocks, the average profit margins have been 50%, 25%, 15%, 5%, 45%, and 30%. What is the mean absolute deviation of profit margins from the industry average?
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A. B. C. D.A
The mean absolute deviation = the sum of (as i goes from 1 to n) of the absolute value of (X_i - Xbar), divided by n. Here, we have [|50% - 30%| + |25% - 30%| + |
15% - 30%| + |5% - 30%| + |45% - 30%| + |30% - 30%|]/6 = 13.33%