3
QuizMultiple Choice

Calculating the Least-Squares Regression Line

Question 3 • CR_(AQR)_Advanced Quantitative Reasoning A_2111_SAISD 25-26

To investigate the influence of distracted driving, 13 volunteers were asked to participate in a study involving a driving simulator. The participants drove at a safe speed but were told to stop the car at a random moment during the simulation. The scatterplot shows the reaction time and the simulated car’s stopping distance, in feet, for each volunteer.

Question illustration
Answer
A
reaction time 0.5 seconds, stopping distance 35 feet
B
reaction time 1.7 seconds, stopping distance 53 feet
C
reaction time 2 seconds, stopping distance 67 feet
D
reaction time 2.1 seconds, stopping distance 60 feet
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To investigate the influence of distracted…