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 5 14
4-8 hours 20 19 39
8-12 hours 15 16 31
more than 12 hours 18 19 37
Total 62 59 121

How many total students who spend more than 12 hours a week on screens were surveyed?

Answer 1

37