To find the mean number of hours spent on homework, we need to add up the total number of hours spent by all the people and then divide by the total number of people.
Total hours spent on homework:
8 people * 1 hour = 8 hours
6 people * 2 hours = 12 hours
4 people * 3 hours = 12 hours
2 people * 4 hours = 8 hours
1 person * 5 hours = 5 hours
Total hours = 8 + 12 + 12 + 8 + 5 = 45 hours
Total number of people = 8 + 6 + 4 + 2 + 1 = 21 people
Mean number of hours spent on homework = Total hours / Total number of people
Mean = 45 hours / 21 people
Mean = 2.14 hours
Therefore, the mean number of hours spent on homework is 2.14 hours.
Eight people spend one hour doing homework, six people spend 2 hours doing homework, four people spend 3 hours doing homework, two people spend 4 hours on homework, and one person spent 5 hours on homework What is the mean number of hours spent on homework
1 answer