Question

What is the equation of the least-squares regression line describing the relationship between percent free/reduced lunch and average SAT math score?

A) y = mx + c
B) y = ax + b
C) y = lx + m
D) y = px + q

Answer 1

The equation of the least-squares regression line is y = mx + b, where y represents the average SAT math score and x represents the percent free/reduced lunch.

Step-by-step explanation:

The equation of the least-squares regression line describing the relationship between percent free/reduced lunch and average SAT math score is y = mx + b. In this equation, y represents the average SAT math score, x represents the percent free/reduced lunch, m represents the slope of the line, and b represents the y-intercept.

The equation is in the form of a linear equation, where the dependent variable (y) is expressed as a constant term (b) plus a multiple of the independent variable (x) multiplied by the slope (m).