Scatterplot Basics

How would you describe the association?

• negative linear strong with outlier

• negative non linear weak

• positive linear moderate with outlier

• outlier

describe the association

• Positive linear weak

• positive linear strong

• Positive non linear strong

• positive linear moderate

What type of relationship does this graph show?

• Positive

• Negative

• No Relationship

• Constant 

What type of relationship does this graph have?

• Positive 

• Negative

• No Relationship

• Constant

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

Based on this scatterplot, approximate what score should a student who attended class 22 days expect to receive on the exam?

• 84

• 71

• 95

• 75

Describe the correlation coefficient if

r = 0.90

• Positive, weak

• Positive, strong

• Negative, weak

• Negative, strong

Find the equation of the line of best fit for this table.

• y = -2.28x + 51.08

• y = 51.08x - 2.28

• y = 0.06x - 0.26

• y = -2.28x - 0.26

Which graph shows the line of best fit?

• Graph A

• Graph B

• Graph C

• Graph D

Which scatter plot show a positive relationship?

• Graph A

• Graph B

• Graph C

• Graph D