MAT123 Spring 2025 Notes

Wed, 2/5, 12.1, 12.2, 12.3

12. 1 Linear Equations
12.2 Scatterplots
12.3 The Regression Equation: a) Briefly review linear equations; b) Construct scatter plots; c) Discuss the meaning of the correlation coefficient; d) Discuss the meaning of the coefficient of determination; e) Use software to calculate the regression statistics (Lab 3); f) Interpret the meaning of the regression slope and intercept in the context of applied problems; g) Assess the suitability of a linear relationship for bivariate data using regression analysis. Use regression equation for interpolation if appropriate.

Comments ...

Hi,: Yes, center and spread are important when considering the correlation between 2 variables.; Here's a pdf of "Center & Spread" and the Center & Spread" video and stat123sp25.A.xls, the spread sheet from the video. .; Go with confidence. Stay safe, A²

stat123sp25.A.xls - basic 1-variable &
2-variable statistics, scatterplot, regression

$[MC,i. Home, site home page]$

$algebra.notes$ $[Words]$