Texas Instruments MathPrint TI-30X Pro Manual Book page 35

3:2-VAR STATS Analyses paired data from 2 data sets with 2
4:LinReg a x +b
5:PropReg a x
6:RecipReg
a/ x +b
7:QuadraticReg Fits the second-degree polynomial y=ax
8:CubicReg
9:LnReg a+bln x Fits the model equation y=a+b ln(x) to the data
:PwrReg a x ^b Fits the model equation y=ax
:ExpReg ab^ x
included.
measured variables— x , the independent variable,
and y , the dependent variable. Frequency data
may be included.
2-Var Stats also computes a linear
Note:
regression and populates the linear regression
results. It displays values for a (slope) and b (y-
intercept); it also displays values for r
Fits the model equation y=ax+b to the data using a
least-squares fit for at least two data points. It
displays values for a (slope) and b (y-intercept); it
also displays values for r
Fits the model equation y=ax to the data using
using least squares fit for at least one data point.
It displays the value for a . Supports data forming a
vertical line with the exception of all 0 data.
Fits the model equation y=a/x+b to the data using
least squares fit on linearised data for at least two
data points. It displays values for a and b ; it also
displays values for r
the data. It displays values for a , b , and c ; it also
displays a value for R
equation is a polynomial fit; for four or more, it is
a polynomial regression. At least three data points
are required.
Fits the third-degree polynomial y=ax
to the data. It displays values for a , b , c , and d ; it
also displays a value for R
equation is a polynomial fit; for five or more, it is a
polynomial regression. At least four points are
required.
using a least squares fit and transformed values ln
(x) and y. It displays values for a and b ; it also
displays values for r
least-squares fit and transformed values ln(x) and
ln(y). It displays values for a and b ; it also displays
2
values for r and r .
Fits the model equation y=ab
least-squares fit and transformed values x and ln
(y). It displays values for a and b ; it also displays
2
values for r and r .
2
and r .
2
and r .
2
. For three data points, the
2
. For four points, the
2
and r .
b
to the data using a
x
to the data using a
2
and r .
2
+bx+c to
3 2
+bx +cx+d
Math Functions 31