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 10 6 16
4-8 hours 19 16 35
8-12 hours 13 17 30
more than 12 hours 14 15 29
Total 56 54 110

How many total students were surveyed?

Answer 1

110 students. (Sum of row totals 16+35+30+29 = 110, or 56 above + 54 below = 110.)