Two-variable

Statistic

Definition

 

 

MEANX

Mean of x- (independent) values.

ΣX

Sum of x-values.

ΣX2

Sum of x2-values.

MEANY

Mean of y- (dependent) values.

ΣY

Sum of y-values.

ΣY2

Sum of y2-values.

ΣXY

Sum of each xy.

SCOV

Sample covariance of independent

 

and dependent data columns.

PCOV

Population covariance of independent

 

and dependent data columns

CORR

Correlation coefficient of the

 

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.

RELERR

The relative error (for the selected fit).

 

Provides a measure of accuracy for

 

the fit.

 

 

8-14

Statistics aplet