Regression

# Regression - To see the r value when you find the linear...

This preview shows pages 1–3. Sign up to view the full content.

1. Setting up a Stat Plot Press STATPLOT Pick 1: Plot1 move to On and press ENTER 2. Enter Data Into a STAT Table Press STAT Pick 1: Edit and enter x’s in L1 and y’s in L2 3. Graph the Scatter Plot Press ZOOM and pick 9: ZoomStat Press GRAPH 4. Do Linear Regression Press STAT to select CALC Pick 4:LinReg (ax+b) 5. Draw Graph of Points with Regression Line Transfer the Stored Equation to Y1=

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Press VARS and Press   to select EQ Pick 1: RegEQ and the equation should be written into Y1 Press GRAPH Correlation Coefficient – describes the strength of the linear relationship. The closer the r is to 1 the stronger the linear relationship.
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: To see the r value when you find the linear regression model go to 2 nd catalog and choose DiagnosticOn and select enter. Use your calculator to create a scatter plot and find a Line of Best Fit. (Linear Regression Model) pick 5: Statistics (Kind of like “copy” and “paste”) ( Press y= P Clear any old equations If data are linearly correlated, that is, they are roughly in a straight line, then we can find the equation of the line that “ best fits ” the data. This equation is called a model and the process is called fitting the best line to the data or ________________....
View Full Document

{[ snackBarMessage ]}

### Page1 / 3

Regression - To see the r value when you find the linear...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online