### COVAR(array1, array2)

Returns the average of the products of deviations for each data point pair.

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

#### Remarks

 * 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.* For the Microsoft documentation refer to support.office.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!