Subjects statistics

Brushing Time 0A5C30

Step-by-step solutions with LaTeX - clean, fast, and student-friendly.

Use the AI math solver

1. The problem asks: What percent of the students spent 60 seconds or longer brushing their teeth? 2. From the box plot description: - The box extends from 60 to 120 seconds. - The median is at 85 seconds. - The whiskers extend from 40 seconds (minimum) to 140 seconds (maximum). 3. Important rule: In a box plot, the box represents the middle 50% of the data (from the first quartile Q1 to the third quartile Q3). - The left whisker extends to the minimum. - The right whisker extends to the maximum. - The median divides the data into two equal halves. 4. Since the box starts at 60 seconds, the first quartile (Q1) is 60 seconds. - This means 25% of the data is below 60 seconds. - Therefore, 75% of the students spent 60 seconds or longer brushing their teeth. 5. Final answer: $$\boxed{75\%}$$