Casio MS 300M User Guide - Page 9

FX 300 MS Training guide Regression Use the [MODE] key to enter the Regression (REG) mode when you want to perform statistical calculations using regression. [MODE] [3] When you enter Regression mode, you can select from 6 types of regression: Linear regression Logarithmic regression Exponential regression Power regression Inverse regression Quadratic regression [1] (Lin) [2] (Log) [3] (Exp) → [1] (Pwr) → [2] (Inv) → [3] (Quad) • To clear statistical memory, press [SHIFT] [CLR] [1] [=]. • To enter data, use the following key sequence: , [DT] • The values produced by a regression calculation depend on the values input. Results can be recalled using the following: ∑ x2 ∑ x n ∑ y2 ∑ y ∑ xy Mean of the x data Population standard deviation (x) Sample standard deviation (x) Mean of the y data Population standard deviation (y) Sample standard deviation (y) Regression coefficient A Regression coefficient B [SHIFT] [S-SUM] [1] [SHIFT] [S-SUM] [2] [SHIFT] [S-SUM] [3] [SHIFT] [S-SUM] → [1] [SHIFT] [S-SUM] → [2] [SHIFT] [S-SUM] → [3] [SHIFT] [S-VAR] [1] [SHIFT] [S-VAR] [2] [SHIFT] [S-VAR] [3] [SHIFT] [S-VAR] → [1] [SHIFT] [S-VAR] → [2] [SHIFT] [S-VAR] → [3] [SHIFT] [S-VAR] → → [1] [SHIFT] [S-VAR] → → [2] For regression calculations other than quadratic regression: Correlation coefficient r Estimate x Estimate y [SHIFT] [S-VAR] → → [3] [SHIFT] [S-VAR 1] [SHIFT] [S-VAR 2] For quadratic regression: ∑ x3 ∑ x2 y ∑ x4 Regression coefficient C Estimate x1 Estimate x2 Estimate y [SHIFT] [S-SUM] → → [1] [SHIFT] [S-SUM] → → [2] [SHIFT] [S-SUM] → → [3] [SHIFT] [S-VAR] → → [3] [SHIFT] [S-VAR 1] [SHIFT] [S-VAR 2] [SHIFT] [S-VAR 3] 9 References the Casio FX-300 MS User's Guide Casio FX-300MS Scientific calculator