Question

Screen Time
Hours above below
less than 4 hours 8 6
4-8 hours 15 10
8-12 hours 10 18
more than 12 hours 16 18

What percent of the students who spend 8-12 hours a week on screens reported a grade average above 80? Round your answer to the nearest whole number percent.

Answer 1

To find the percentage of students who spend 8-12 hours a week on screens and reported a grade average above 80, we can use the data provided.

From the table:
- Students spending 8-12 hours and reporting above 80: 10
- Students spending 8-12 hours and reporting below 80: 18

First, we need to compute the total number of students who spend 8-12 hours on screens:

Total students in the 8-12 hours category = Students above 80 + Students below 80
Total students = 10 + 18 = 28

Now, we can calculate the percentage of students who reported a grade average above 80:

\[
\text{Percentage} = \left(\frac{\text{Number above 80}}{\text{Total number of students in this category}}\right) \times 100
\]

\[
\text{Percentage} = \left(\frac{10}{28}\right) \times 100 \approx 35.71
\]

Rounding to the nearest whole number gives us approximately:

\[
\text{Percentage} \approx 36\%
\]

Thus, the percentage of students who spend 8-12 hours a week on screens and reported a grade average above 80 is **36%**.