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.
Answer:
Screen Time
less than 4 hours
4-8 hours
8-12 hours
more than 12 hours
Total
above below Total
8
6
18
19
13
58
16
16
20
58
What percent of the students who spend 4-8 hours a week on screens reported a
grade average above 80? Round your answer to the nearest tenth of a percent.
14
34
35
33
116
%
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