Chapter 1
Algebra
Course: Sat Prep
Subject: Math
Chapter: Problem Solving And Data Analysis
Two-variable data analysis helps us understand the relationship between two variables and identify patterns that can be used to make predictions. By organizing and graphing data, we can determine whether a relationship exists and model it using a line of best fit.
In this lesson, you will learn how to:
- Interpret two-variable data.
- Create and analyze scatterplots.
- Identify positive, negative, and no correlation.
- Draw and interpret a line of best fit.
- Use a line of best fit to estimate and predict values.
- Apply two-variable data analysis to solve real-world problems.
Scatterplots
A scatterplot is a graph that displays the relationship between two numerical variables by plotting ordered pairs on a coordinate plane. Each point represents one observation, with the horizontal axis representing the independent variable and the vertical axis representing the dependent variable.