The Excel AVEDEV function returns the average of the absolute value of deviations from the mean for a given set of data. Average deviation is a measure of variability.
Get sum of squared deviations
=AVEDEV (number1, [number2], ...)
number1 - First value or reference.
number2 - [optional] Second value or reference.
The Excel AVEDEV function calculates the average of absolute deviations from the mean in a given set of data.
Variance and standard deviation functions deal with negative deviations by squaring deviations before they are averaged. AVEDEV handles negative values by working only with absolute values.
This average is called the average absolute deviation. It's an easy way to show variability in a data set, but not as common as variance and standard deviation. One advantage of AVEDEV is that units remain unchanged. If values are centimeters, the absolute average deviation is in centimeters as well.
The Excel AVERAGE function returns the average of values supplied as multiple arguments. AVERAGE can handle up to 255 individual arguments, which can include numbers, cell references, ranges, arrays, and constants.
The Excel VAR function estimates the variance of a sample of data. If data represents the entire population, use the VARP function or the newer VAR.P function. VAR ignores text values and logicals in references.
Formulas are the key to getting things done in Excel. In this accelerated training, you'll learn how to use formulas to manipulate text, work with dates and times, lookup values with VLOOKUP and INDEX & MATCH, count and sum with criteria, dynamically rank values, and create dynamic ranges. You'll also learn how to troubleshoot, trace errors, and fix problems. Instant access. See details here.