Regression Calculations - Sharp EL-9900 Operation Manual

Chapter 10: Statistics & Regression Calculations

5. Regression Calculations

Accessing the
regression menu
01 Med_Med
02 Rg_ax+b
03 Rg_a+bx
04 Rg_x 2
3
05 Rg_x
160
1. Press S D REG.
The Regression menu is displayed.
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
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
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
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)
+
2
Formula: y = ax
Parameters: a, b, c, R
3 (list name for x, list name for y [, frequency list] [,
Rg_x
equation name to store])
Finds the regression line using the third degree polynomial. (cubic
regression)
+
3
Formula: y = ax
Parameters: a, b, c, d, R
2
2
+
bx c
2
+ +
2
bx cx d
2