Positive Correlation negative Correlation no Correlation.

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Presentation transcript:

positive Correlation negative Correlation no Correlation

Steps for Scatterplots Plot the points. *Do NOT connect the points. 2. “Eyeball” a Line of Best Fit. *Does not have to go through any points. *Use endpoints that are identifiable. 3. Find the equation of the line. *Look for the slope and y-intercept (y=mx+b) OR use the slope and a point [(y-y1)=m(x-x1)] 4. Use the equation to make predictions.

Education and income Number of pets a person has and number of books a person has read Number of days absent from school vs. math average Test scores vs. shoe sizes Distance traveled vs. amount of gas in the car Hours of studying vs. grades Hours in the mall vs. amount of money spent Weight on a skateboard vs. speed of the skateboard A person’s height and a person’s age How tall a person is and how fast they drive Temperature and number of people wearing jackets