Question

question 7. a school survey asks 300 students in grade 10 to keep track of the total number of hours they spend watching television over the weekend. the results are shown in the box - and - whisker plot. if the information in the plot represents the behavior of all high school students, then which statement best describes all high school students? a. all high school students most likely watch more than 3 hours of television in a weekend. approximately 25% of high school students watch more than 3 hours of television in a weekend. approximately 50% of high school students watch more than 3 hours of television in a weekend. approximately 75% of high school students watch more than 3 hours of television in a weekend.

Explanation:

In a box - and - whisker plot, the first quartile ($Q_1$) marks the 25th percentile, the median ($Q_2$) marks the 50th percentile, and the third quartile ($Q_3$) marks the 75th percentile. If 3 hours is at the first quartile ($Q_1$) of the data distribution of hours of TV watched by high - school students over the weekend, then 75% of the students watch more than 3 hours of television in a weekend.

Answer:

Approximately 75% of high school students watch more than 3 hours of television in a weekend.