The student conducted a survey asking 10 people how many hours of sleep they get each night. The responses were categorized as 7 hours or less, 3 hours or less, and 9 hours or more. A tally showed 5 people slept 3 hours or less, 3 people slept 9 hours or more, and 2 slept 7 hours or less. Graphs were created to display the results, which found the average hours of sleep among the 10 people was 3.3 hours.