ReQuiz - Causation and Linear Regression

The table represents a linear association of the number of cumulative yards a football has compared to the number of games played.

Based on the regression model, how many cumulative yards would be expected on game number 20

• 2140.4

• 2200.5

• 2420.6

• 2630.5

The scatterplot shows movie theaters with different numbers of screens and their average weekly attendance.

Based on the trend in the scatter plot, approximately how many people will be in attendance at a movie theater with 8 screens?

• 90

• 120

• 80

• 140

Which of the following correlation coefficients indicates the strongest linear association?

• 0.545

• -0.993

• -0.326

• 0.824

The table represents a linear association.

What is the correlation coefficient for the data shown above and what does that value indicate about the strength of the linear association?

• -0.248; weak negative correlation

• 0.801; strong positive correlation

• -0.801; strong negative correlation

• 0.134; weak positive correlation

Which association is most likely to cause the number of daily visitors to an ocean beach to increase?

• An increase in the number of shark sightings reported

• The beach park admission fee is lowered.

• The average daily temperature declines.

• The number of parking spaces near the beach are reduced.