College

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

Answer:

above below

9

9

16

15

17

less than 4 hours

4-8 hours

8-12 hours

more than 12 hours 14

%

11

What percent of the students who spend less than 4 hours a week on screens reported

a grade average below 80? Round your answer to the nearest whole number percent.

20

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attempt 2 out of 2

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

Answer :

The percentage of students who spend less than 4 hours a week on screens which reported a grade average below 80 is 50%

Given, we have the report representing children spending time online, on social media or watching T.V, which has there effect on there grades as above or below 80.

By the question we know that the number of students who spends less than 4 hours a week on screen is:

9 + 9

= 18

And among the 18 students there are 9 students whose grade average is below 80.

So the percentage of the students who spends 4 hours a week on screen is:

= 9 ÷ 18 × 100%

= 100/2

= 50%

hence 50% students spend less than 4 hours a week on screens.

Learn more about Percentage here:

brainly.com/question/843074

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