COVAR

COVAR(array1, array2)

Returns the covariance based on an entire population.

array1	The first array of integers.
array2	The second array of integers.

REMARKS

* This function is only available for backwards compatibility and should not be used.
* COVARIANCE.P was added in Excel 2010 to replace this function.
* The covariance is the average of the products of deviations for each data point pair.
* The arguments must be either numbers, named ranges, arrays, or cell references that contain numbers.
* 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.
* If "array1" and "array2" have different numbers of data points, then #N/A is returned.
* The average of the products of deviations for each data point pair is known as covariance. Use covariance to determine the relationship between two data sets.
* For example, you can examine whether greater income accompanies greater levels of education.
* You can use the COVARIANCE.S function to return the covariance based on a sample.
* For the Microsoft documentation refer to support.microsoft.com
* For the Google documentation refer to support.google.com

	A
1	=COVAR({10, 20, 30}, {40, 50, 60}) = 66.67
2	=COVAR({3, 2, 4, 5, 6}, {9, 7, 12, 15, 17}) = 5.2
3	=COVAR({3, 2, 4, 5, 6}, {9, "some text", 12, 15, 17}) = 3.4
4	=COVAR({3, 2, 4, 5, 6}, {1, 2}) = #N/A
5	=COVAR({3, 2, 4, 5, 6}, ) = #VALUE!