Normalized data refers to any number that is part of a distributed set of numbers that has been adjusted for the mean, or average, of that set and the set's standard deviation.
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In Microsoft Excel, you can use the STANDARDIZE formula to normalize any number, provided you also have the average of its set and the standard deviation.
Open a new Excel workbook. Enter a set of data in column A, beginning at cell A2. Type a name for the data in cell A1.
Type Average below the data in column A. Beside the word Average in Column B, type =AVERAGE(). Place the cursor between the parenthesis and highlight the data in column A. Press Enter to calculate the formula. In the screenshot example, the formula is: =AVERAGE(A2:A13).
Type Standard Deviation below the word Average. Tab over to column B and type =STDEV(). Again, place the cursor between the parenthesis, highlight the data cells and press Enter. In the screenshot example, the formula is: =STDEV(A2:A13).
Place the cursor in cell B2, beside the first value in column A. Type =STANDARDIZE() in the cell and place the cursor between the parenthesis. Type three cell coordinates:
- Type A1 for the cell being normalized, then a comma.
- Type B$ and then the cell number containing the AVERAGE formula, such as B$15, followed by a comma.
- Type B$ and the cell number containing the STDEV formula, such as B$16.
Press Enter to calculate the formula, which should look like this: =STANDARDIZE(A2,B$15,B$16).
Press Ctrl-C to copy cell B2. Highlight all the cells in B2 that are beside a value in the first column and press Ctrl-V to paste the formula into these cells. Now every value in column A has a normalized value in column B.