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:
$$\boxed{75\%}$$
Brushing Time 0A5C30
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