Lesson Plan: Least Squares Regression Line | Nagwa Lesson Plan: Least Squares Regression Line | Nagwa

# Lesson Plan: Least Squares Regression Line Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to find and use the least squares regression line equation.

#### Objectives

Students will be able to

• find and interpret the equation of the least squares regression line,
• use the equation of the least squares regression line to solve real-life situations,
• estimate the value of or given a table of - and -values or the regression model,
• find the points that lie on the same least squares regression line,
• calculate the value of the regression coefficient (the slope),
• identify the appropriate linear model,
• calculate the least squares regression line given parts of the formula such as the standard deviation or the mean.

#### Prerequisites

Students should already be familiar with

• whether two variables have linear correlation based on a scatter diagram of bivariate data,
• the notions of positive and negative correlation based on a scatter diagram of bivariate data,
• the strength of correlation based on a scatter diagram of bivariate data,
• one-variable statistics, including variation, mean, and standard deviation.

#### Exclusions

Students will not cover

• proof of the formula for the gradient and -intercept of the least squares regression line,
• using the correlation coefficient to determine the type of correlation,
• drawing the least squares regression line.