UploadCO2data and create a scattered plot chart withX representing average weekday traffic densityandY representing the average CO2 concentration; plot the line and compute the R-square. Answer the questions:

I) What are the slope and the R-squares on your chart? (10 points)

• a. 0.0208 and 0.9267
• b. 0.0208x and 0.9267
• c. 44.496 and 0.9267
• d. None of these

II) If one observes average weekday traffic density of 200, using the chart and the equation, what is your prediction for the average CO2 concentration? (10 points)

• a. As years go by we see more CO2 concentration for every weekday traffic density of 200.
• b. There will be approximately 5.379 units of CO2 concentration.
• c. If traffic density increases to 200 CO2 concentration will increase to 5.379 units.
• d. There will be approximately an increase of 5.379 units of CO2 concentration for an average weekday traffic density of 200.

III) What does each dot represent? (10 points)

• a. Week
• b. CO2
• c. City
• d. None of the above

Task 2