FA C T O R T H E F O L L O W I N G :

Opener

22 7 15x x

2-5 Scatter Plots and Lines of Regression

1. Bivariate Data – data with two variables2. Scatter Plot – graph of bivariate data. Used to predict.

3. Line of Best Fit – connect two points with equal

points on either side. Then calculate the Prediction Equation. (y=mx+b)

4. Regression Line – calculation of line of best fit.5. Correlation Coefficient - r measures how good the line of regression is. -1 < r < 1

Vocabulary

Steps to Find your Line of Prediction1. Plot Points and label axis.2. Draw a line of best fit with the same

number of points on each side.3. Pick two points on the line and

calculate an equation. (prediction equation)

4. Predict the number of households in 2020.

Try Another

2nd catalog.Diagnostics on.

Graphing Calculator Practice

You Try!!!Use your Calculator.