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

	above	below
4 - 8 hours	18	14
8 - 12 hours	11	14
more than 12 hours	10	15

how many students who spend 4 - 8 hours a week on screens reported a grade average below 80?

Explanation:

Step1: Locate relevant data

We look at the row for 4 - 8 hours in the table.

Step2: Find the value for grade average below 80

In the row for 4 - 8 hours, the value in the "below" column is 14.

Answer:

14