Opener
FACTOR THE FOLLOWING:
2 x  7 x  15
2
2-5 Scatter Plots and Lines of
Regression
1. Bivariate Data – data with two variables
2. 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 Prediction
1. 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.