Scatterplot Association

Describe the association between the number of lanes rented and the number of people bowling.

• Non-linear association

• Negative linear association

• No association

• Positive linear association

You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?

• As x increases, y decreases

• As x increases, y increases

• As x decreases, y decreases

Describe the association for the scatterplot based on data plotted.

• As the weeks increase, the amount of money on the gift card increases.

• As the weeks decrease, the amount of money on the gift card increases.

• There is no relationship between the time in weeks and the amount of dollars.

• As the weeks increase, the amount of money on the gift card decreases.

Which best describes the form of this scatterplot?

• linear

• nonlinear

• scattered

• no correlation

Describe the association for the graph.

• Linear and Positive

• Linear and Negative

• Non-Linear and Positive

• Non-Linear and Negative

• Non-Linear and No Association

How would you describe the relationship in the scatterplot?

• As ticket prices increase, concert attendance increases.

• There is no relationship between ticket prices and concern attendance.

• As ticket prices increase, concert attendance decreases.

• Tickets cost a lot of money.

Answer explanation

Because this is a negative relationship, as the "x" value increases (ticket price), then the "y" value decreases (concert attendance).

What type of association is shown in the scatterplot between ticket price and concert attendance?

• Positive Association

• No association

• Negative Assocation

Answer explanation

The points on the scatterplot follow a downward trend. If I drew a line of best fit it would have a negative slope.

There is an outlier in the scatterplot.

• True

• False

Answer explanation

The outlier does not fit the pattern of the rest of the data.

Would the data in the scatterplot be considered a linear or nonlinear relationship?

• Linear

• Nonlinear

Answer explanation

The data in the scatterplot is considered a linear relationship because the points follow the pattern of a line. The strength of the relationship is moderate.

Which data will most likely show a positive correlation when graphed on a scatterplot?

• The amount of rainfall on Fridays

• The height of a candle and the amount of time the candle stays lit

• The price of a pizza and the number of toppings added

• The temperature of a cup of hot chocolate and the length of time the cup sits

Answer explanation

CORRECT ANSWER

The price of a pizza increases as the number of toppings increase. In a positive relationship, both variables increase.

INCORRECT ANSWERS

Rain on Fridays - no relationship

Height of candle/time lit - negative relationship (Height of candle decreases as time increases)

Temperature of hot chocolate/time it sits - negative relationship (Temperature decreases as time increases)