58
(Quad): Quadratic regression
D Always begin entering data by pressing the key sequence
(Scl) to clear the statistical memory.
D Enter data using the following key sequence. <x-data> <y-data>
.
D The values produced from a regression calculation depend on the
values entered, and results can be called in using the key operations
indicated in the table below.
Recall the value: Execute this key operation:
∑χ²
∑χ
n
∑y²
∑y
∑χy
χ
χσ
n
Χσ
n-1
y
yσ
n
Yσ
n-1
Regression coefficient A
Regression coefficient B
other than quadratic regressions
Correlation coefficient r
x
y