AMDM Scatterplots and Correlation

Which is the correct relationship for the following graph?

• The systolic blood pressure depends on the age.

• The age depends on the systolic blood pressure.

• The blood pressure and age don't coorelate.

What is the dependent variable?

• Sunglasses Sold

• Ice Cream Sales

• Independent

Which scatter plot shows no relationship?

• Graph A

• Graph B

• Graph C

• Graph D

A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.

• y = 1.5x + 12

• y = 12x + 1.5

• y = 0.67x - 8

• y = -8x + 0.67

What is a best-fit line 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

Find the slope.

• 3/2

• -3/2

• (-0,-3)

• none of the above

Which equation represents the following graph?

• y = 3x + 2

• y = -2x + 3

• y = 2x + 3

• y = -3x + 2

What type of association does this graph have?

• positive

• negative

• none

• all of the above

Describe the type of linear correlation between the two variables

• Strong positive

• Weak positive

• Strong Negative

• No correlation

Which is the ordered pair for Point Y?

• (4, 5)

• (4, 9)

• (7, 9)

• (9, 4)