Scatterplots and Systems

What is the equation of the line of best fit?

• y= 6x + 2

• y = -2x +6

Which line is the best line of best fit?

• a

• b

• c

• i don't see any lines

If Joe worked 30 hours, how much is he expected to earn?

• $600

• $200

• $1000

• $800

What best describes the association shown in the scatter plot below?

• Negative and linear

• Negative and nonlinear

• Positive and linear

• Positive and nonlinear

What type of association is shown in the scatter plot?

• Positive

• Negative

• No association

What type of association is shown in the scatter plot?

• Positive

• Negative

• No association

Which scatter plot (3-6) could be used to show the relationship between a person's age and a person's height?

• 3

• 4

• 5

• 6

Which would NOT likely be the variables represented in the scatter plot shown?

• The number of miles driven and the gallons of gas used.

• The number of students in a school and the number of unused lockers.

• The number of items ordered at a restaurant and the cost of the bill.

• The number of customers in a store and the length of the wait at the register.

Which scatter plot has a stronger association? How do you know?

• Scatter plot A, the points of data are closer together.

• Scatter plot A, the points of data are farther apart.

• Scatter plot B, the points of data are closer together.

• Scatter plot B, the points of data are farther apart.

Which scatter plot appears to be more linear?

• Scatter plot A,

• Scatter plot B