RCORRCOEFF returns the correlation coefficient (i.e. the goodness of fit) for the linear regression line through the X and Y Cell Range.
SYNTAX:
RCOFFCOEFF(X Cell Range,Y Cell Range)
X Cell Range: The cell range for the X-Axis data.
Y Cell Range: The cell range for the Y-Axis data
EXAMPLES:
=RCORRCOEFF(E9:E14,C9:C14)
See Also: RSLOPE, RINTERCEPT