Texas Instruments TITANIUM TI-89 User Manual

Page 550

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Statistics and Data Plots

550

††

corr

is defined for a linear regression only;

R

2

is defined for all polynomial

regressions.

Note:

If

regeq

is 4x + 7, then

regCoef

is {4 7}. To access the “a” coefficient (the 1st element

in the list), use an index such as

regCoef[1]

.

maximum of x values

maxX

maxX

minimum of y values

minY

maximum of y values

maxY

1st quartile

q1

median

medStat

3rd quartile

q3

regression equation

regeq

regression coefficients
(a, b, c, d, e)

regCoef

correlation coefficient ††

corr

coefficient of determination ††

R

2

summary points
(MedMed only) †

medx1, medy1,
medx2, medy2,
medx3, medy3

One
Var

Two
Var

Regressions

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