Estimating Correlation on Scatterplot

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

Describe the correlation.

• Negative correlation

• No correlation

• Positive correlation

• Constant correlation

What type of correlation does the graph show?

• Positive Correlation

• Negative Correlation

• No Correlation

What type of correlation does the graph show?

• Positive Correlation

• Negative Correlation

• No Correlation

What are the coordinates of the outlier?

• (9,1)

• (0,3)

• (1,9)

Which could be a good Line of Best fit?

• a

• b

• c

What is another name for line of best fit- the line that goes through the points on a scatter plot?

• Correlation

• Interpolation

• Slanted Line

• Trend Line

Which shows a line of best fit?

• 
• 
• 
• 

What is a line of best fit used for?

• To make predictions

• To make the graph look pretty

• To connect the points

• To make it look like you know what you are doing

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