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ordinal: The position at which a number appears in a sequence, such as first, second, or third.ratio: A number representing a comparison of two quantities, usually represented as a fraction, percentage, or decimal.standard deviation: A measure of how spread out data values are around the mean, mathematically defined as the square root of the variance.This resulting quantity is in the same units as the original values, which overcomes certain limitations for interpreting the variance. The standard deviation is calculated as the square root of the variance.The variance is the mean squared deviation of a data set, meaning it is the sum of the squared deviations of the mean divided by the total population.The range is the difference between the highest and lowest values of a data set, generally found by subtracting the lowest from the highest value found.In the data set (1, 3, 3, 4, 5, 6), 3 is the mode because it is the value that appears the most number of times. The mode is the most common value in a data set.In the data set (1, 3, 3, 4, 5, 6), which is ordered from smallest to largest, the median would be the value found between the two middle numbers of the set 3 and 4.
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The median is the value found in the middle of an ordered set of data.In the data set (1, 3, 3, 4, 5, 6), the average would be the sum of all of the values of the data set (1+3+3+4+5+6 = 22), divided by the total number of values (6), which gives a mean of 3.66 for this data set. The mean is the average value of a data set.The standard deviation for the list will appear in the cell you selected. Once you have entered the range for your list, click on OK at the bottom of the dialog box.
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Instead of typing the range, you can also move the cursor to the beginning of the set of scores you wish to use and click and drag the cursor across them. For example, if your data were in column A from row 1 to 13, you would enter A1:A13. After you have made your selections, click on OK at the bottom of the dialog box.Įnter the cell range for your list of numbers in the Number 1 box. (Note: If your data are from a population, click on STDEV.P). Select STDEV.S (for a sample) from the the Statistical category. Place the cursor where you wish to have the standard deviation appear and click the mouse button.Select Insert Function (f x) from the FORMULAS tab. The mean (average) for the list will appear in the cell you selected. If a data set had more than one mode, Excel would only display one of them.)Įnter the cell range for your list of numbers in the Number 1 box. (Note: If you want the Median, select MEDIAN. Select AVERAGE from the Statistical category and click OK. Select Insert Function ( f x) from the FORMULAS tab. After the data have been entered, place the cursor where you wish to have the mean (average) appear and click the mouse button. Enter the scores in one of the columns on the Excel spreadsheet (see the example below).