An Insurance Company Hires Ulrich to Explain Car Accidents That

An insurance company hires Ulrich to explain car accidents that are the result of people who look at the road while driving but do not see an oncoming car, a type of accident labeled as "driver looked but did not see." Ulrich creates an experiment in which participants see two pictures flashing on a computer screen.Both pictures show the same scene but one is slightly different.Ulrich records how long it takes people to notice the change (reaction time) and how many sets of pictures they view during a 5-minute session.What should Ulrich include on a scatterplot to most effectively describe these data?

A) reaction time and gender
B) reaction time and total study time
C) reaction time and number of pictures viewed
D) number of pictures viewed and gender