Question

A survey asked a random sample students if they estimated they spent more or less than an hour a day on social media.
Social Media
Grade More Less Total
7th grade 25 12 37
8th grade 19 29 48
Total 44 41 85

What percent of the 8th graders estimated they spend less than an hour a day on social media? Round your answer to the nearest tenth of a percent.

Answer 1

To find the percentage of 8th graders who estimated they spend less than an hour a day on social media, we can use the data provided in the survey.

First, identify the number of 8th graders who estimated spending less than an hour on social media:
- Number of 8th graders who said "Less": 29

Next, identify the total number of 8th graders surveyed:
- Total number of 8th graders: 48

Now, to find the percentage of 8th graders who spend less than an hour on social media, use the formula:

\[
\text{Percentage} = \left( \frac{\text{Number of 8th graders who said "Less"}}{\text{Total number of 8th graders}} \right) \times 100
\]

Substituting in the values:

\[
\text{Percentage} = \left( \frac{29}{48} \right) \times 100
\]

Calculating the fraction:

\[
\frac{29}{48} \approx 0.60416667
\]

Now multiply by 100 to convert to a percentage:

\[
0.60416667 \times 100 \approx 60.416667
\]

Rounding to the nearest tenth of a percent:

\[
60.4\%
\]

Therefore, the percentage of 8th graders who estimated they spend less than an hour a day on social media is **60.4%**.