Question

A random sample of students were surveyed as to how much non-school screen time they had each week (for purposes of the survey, screen time was defined as: time spent online, on social media, watching TV, or playing video games) and if their grade average was above or below 80.
Screen Time
Hours above below Total
less than 4 hours 9 9 18
4-8 hours 14 11 25
8-12 hours 12 11 23
more than 12 hours 13 14 27
Total 48 45 93

How many students who spend less than 4 hours a week on screens reported a grade average above 80?

Answer 1

9