Final answer:
Regression analysis is a mathematical process used to construct a model or function that can predict or determine one variable based on another variable. It involves drawing a line of best fit on a scatter plot and finding the equation for the line to make predictions.
Step-by-step explanation:
Regression analysis is a mathematical process used to construct a model or function that can predict or determine one variable based on another variable. In this technique, a line of best fit, also known as a regression line, is drawn on a scatter plot of the given data.
The line represents the relationship between the independent variable (x) and the dependent variable (y). By finding the slope and y-intercept of the line, an equation can be written to make predictions about the dependent variable based on different values of the independent variable.