Scatter Plot Causation Correlation

What is the correlation between length of running start and distance of jump?

• positive:  the further you run the further you jump

• negative: the less you run the less distance of your jump

• positive: the further your running start the less your distance

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters

• 15 chapters

• 18 chapters

• 21 chapters

Mrs. Collins made a scatter plot to show the relationship between the number of absences and a student’s final exam score. Based on this scatter plot, a student with 6 absences should get approximately what score on the final exam?

• 65

• 92

• 70

• 76

What type of association does this graph have?

• positive 

• negative

• none

• all of the above

Based on the graph, if Joe earned $400, how many hours did he work?

• 25 hours

• 35 hours

• 45 hours

• 15 hours

If a scatter plot was reported to have a correlation coefficient of r= -0.88, how would you describe it?

• Strong positive

• Weak positive

• Strong negative

• Weak negative

If a scatter plot was reported to have a correlation coefficient of r=0.3, how would you describe it?

• Strong positive

• Weak positive

• Strong negative

• Weak negative

This implies that one variable has a direct affect on the other variable.

• Correlation

• Causation

Correlation or Causation?

The number of cold, snowy days and the amount of hot chocolate sold at a ski resort.

• Correlation

• Causation

What is correlation?

• The measure of the strength of a relationship.

• The number of points two variables have in common.

• A graph that shows information that is connected in some way.

• A graph that shows data changing over time.