The graph shows the number of hours randomly selected students spent on math homework. What is the mean number of hours students spent on math homework?
(1 point)
• 2.14 hours
• 1.4 hours
• 9 hours
• 1 hour
Number of Hours Spent on Math Homework
I
Number of Students
10 -
9 -
8
76
5
4
3
2
1
0
日
LESSON FEEDBACK
1
2
3
Time (hours)
4
To find the mean number of hours students spent on math homework, we need to calculate the average of all the hours given in the graph.
Add up the total number of hours:
10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 55
Divide the total number of hours by the number of students (10 in this case):
55 / 10 = 5.5
Therefore, the mean number of hours students spent on math homework is 5.5 hours.
None of the options mentioned in the question match the correct answer of 5.5 hours.
To find the mean number of hours students spent on math homework using the given data:
Calculate the total number of hours:
8 students x 1 hour = 8 hours
6 students x 2 hours = 12 hours
4 students x 3 hours = 12 hours
2 students x 4 hours = 8 hours
1 student x 5 hours = 5 hours
Total hours = 8 + 12 + 12 + 8 + 5 = 45 hours
Calculate the total number of students:
8 + 6 + 4 + 2 + 1 = 21 students
Calculate the mean:
Mean = Total hours / Total students
Mean = 45 hours / 21 students
Mean ≈ 2.14 hours
Therefore, the mean number of hours students spent on math homework is approximately 2.14 hours. The closest option provided is:
• 2.14 hours
Thus, the correct answer is 2.14 hours.
8 students say 1 hour
6 students say 2 hours
4 students say 3 hours
2 students say 4 hours
1 student says 5 hours