In this Grade 8 Pengi Math lesson from Chapter 8: Data Analysis and Displays, students learn to define bivariate data, organize paired data into tables, and construct scatter plots by plotting ordered pairs on a coordinate plane. The lesson covers choosing appropriate axis scales and understanding how scatter plots reveal relationships between two quantities.
Section 1
Understanding Scatter Plots and Bivariate Data
Bivariate data consists of pairs of values for two different variables. A scatter plot is a graph that displays these pairs of data as points on a coordinate plane to show the relationship between the two variables.
Section 2
Procedure: Plotting Points on a Scatter Plot
A scatter plot is constructed by converting two-variable data into ordered pairs where represents the first variable and represents the second variable, then plotting these points on a coordinate plane with appropriate scales.
Expand to review the lesson summary and core properties.
Section 1
Understanding Scatter Plots and Bivariate Data
Bivariate data consists of pairs of values for two different variables. A scatter plot is a graph that displays these pairs of data as points on a coordinate plane to show the relationship between the two variables.
Section 2
Procedure: Plotting Points on a Scatter Plot
A scatter plot is constructed by converting two-variable data into ordered pairs where represents the first variable and represents the second variable, then plotting these points on a coordinate plane with appropriate scales.