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Chapter 8: Statistics & Regression Calculations
5. Regression Calculations
1. Press
S
D REG.
The Regression menu is displayed.
01 Med_Med 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 Rg_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 Rg_ax Rg_ax
(list name for x, list name for y [, frequency list] [,
equation name to store])
Finds the regression line. (linear regression)
Formula: y = ax
Parameters: a, r
2
04 Rg_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
05 Rg_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
Accessing the
regression menu