For questions 7 through 13, refer to the box-and-whisker plot below that shows how much time was spent per night on homework for a 7th grade class during September. Average Minutes Per Night Spent On Homework 0 20 48 60 190 7. What percent of the students spend more than 60 minutes on homework per night? 8. What is the range of time the middle 50% of the students spend on homework per night? 9. What percent of the students spend less than 20 minutes per night on homework? 10. Are there any students that do no homework? Explain.

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