HP 39G User Manual page 106

Two-variable
8-14
Statistic Definition
MEANX Mean of x- (independent) values.
Sum of x-values.
X
Sum of x
X2
MEANY Mean of y- (dependent) values.
Sum of y-values.
Y
Sum of y
Y2
Sum of each xy.
XY
Sample covariance of independent
SCOV
and dependent data columns.
Population covariance of independent
PCOV
and dependent data columns
Correlation coefficient of the
CORR
independent and dependent data
columns for a linear fit only
(regardless of the Fit chosen). Returns
a value from 0 to 1, where 1 is the best
fit.
The relative error (for the selected fit).
RELERR
Provides a measure of accuracy for
the fit.
2
-values.
2
-values.
Statistics aplet