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V. 8:10 (392-395): SIDEBAR: Calculating the standard deviation of closing prices

V. 8:10 (392-395): SIDEBAR: Calculating the standard deviation of closing prices

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SIDEBAR: Calculating the standard deviation of closing prices

The standard deviation of closing prices is easy to calculate. Most spreadsheet programs have built-in statistical functions such as average, variance and standard deviation. In Lotus, for example, you could use: @STD(closing price array) defined over a range encompassing the period under consideration.
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