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Chapter 8: Statistics & Regression Calculations
5. Regression Calculations
1. Press
S
D
(
D REG
).
The Regression menu is displayed.
01 MedMed
Med_Med
(list name for x, list name for y [, frequency list] [,
equation name to store])
Finds the regression line using the median-median method.
(linear regression)
Formula: y = ax
+
b
Parameters: a, b
02 ax+b
Rg_ax+b
(list name for x, list name for y [, frequency list] [,
equation name to store])
Finds the regression line. (linear regression)
Formula: y = ax
+
b
Parameters: a, b, r, r
2
03 a+bx
Rg_a+bx
(list name for x, list name for y [, frequency list] [,
equation name to store])
Finds the regression line. (linear regression)
Formula: y = a
+
bx
Parameters: a, b, r, r
2
04 x
2
Rg_x
2
(list name for x, list name for y [, frequency list] [,
equation name to store])
Finds the regression line using the second degree polynomial.
(quadratic regression)
Formula: y = ax
2
+
bx
+
c
Parameters: a, b, c, R
2
05 ln
Rg_ln
(list name for x, list name for y [, frequency list] [,
equation name to store])
Finds the regression curve using the natural logarithm. (natural
logarithm regression)
Formula: y = a
+
b ln x
Parameters: a, b, r, r
2
Accessing the
regression menu
Содержание EL-9450
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