AVEDEV

AVEDEV(number1, number2 [,number3] [..])

Returns the average deviation of the numbers in a list, table or cell range.

number1	The first number.
number2	The second number.
number3	(Optional) The third number.

REMARKS

* For an illustrated example refer to the [[Dispersion]] page.
* The average deviation is a measure of dispersion.
* This function returns the average of the absolute deviations from the mean.
* This function is a measure of the variability in a data set.
* You can also use a single array or a reference to an array instead of arguments separated by commas.
* The arguments must be either numbers or names, arrays, or references that contain numbers.
* If any of the arguments are empty, then these are ignored.
* If any of the arguments contain text or logical values, then these are ignored.
* If any of the arguments are zero, then these are counted.
* If any of the arguments are not numeric, then #VALUE! is returned.
* You can have a maximum of 30 arguments.
* For the Microsoft documentation refer to support.microsoft.com
* For the Google documentation refer to support.google.com

	A	B
1	=AVEDEV(4,5,6) = 0.667	5
2	=AVEDEV(4,5,6,0) = 1.875
3	=AVEDEV(4,4,4) = 0
4	=AVEDEV(4,2,5) = 1.111
5	=AVEDEV(4,FALSE,5) = 2
6	=AVEDEV(4,FALSE,B1) = 2
7	=AVEDEV("4",FALSE,TRUE) = 2
8	=AVEDEV("4",FALSE,B3) = 2
9	=AVEDEV("4",FALSE,TRUE) = 2
10	=AVEDEV(4,"some text",5) = #VALUE!

1 - What is the average deviation of these values from their mean. The mean value is 0.667.
2 - What is the average deviation of these values from their mean. Zeros are included so the mean is 1.875.
3 - What is the average deviation of these values from their mean. The mean value is 0.
4 - What is the average deviation of these values from their mean. The mean value is (4+2+5)/3.