DEVSQ(number1 [,number2] [..])

Returns the sum of the squared deviations from the mean.

number1The first number.
number2(Optional) The second number.

* This function is sometimes referred to as the Deviation Squares function.
* The arguments must be numbers, or names, arrays, or references that contain numbers.
* You can also use a single array or a reference to an array instead of arguments separated by commas.
* If an array or reference argument contains text, logical values, or empty cells, those values are ignored; however, cells with the value zero are included.
* This function can return large values when you have a large number of arguments.
* The Variance is the value returned from this function divided by the number of arguments.
* The value returned is often called the pooled standard deviation.
* You can have a maximum of 30 arguments.
* For the Microsoft documentation refer to

1=DEVSQ(1,2,3,4,5) = 10
2=((3-1)*(3-1))+((3-2)*(3-2))+0+((4-3)*(4-3))+((5-3)*(5-3)) = 10
3=DEVSQ(1,2,3,4,5)/5 = 2
4=VARP(1,2,3,4,5) = 2

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