To find the mean number of hours students spent on math homework, we need to calculate the sum of all the hours and then divide by the total number of students.
(1 * 8) + (2 * 6) + (3 * 4) + (4 * 2) + (5 * 1) = 8 + 12 + 12 + 8 + 5 = 45
Now, we divide by the total number of students: 8 + 6 + 4 + 2 + 1 = 21
Mean = 45 / 21 = 2.14 hours
Therefore, the mean number of hours students spent on math homework is 2.14 hours.
use the image to answer the question
A bar graph shows the number of hours spent on math homework versus the number of students. The horizontal axis shows the time in hours ranging from 1 to 5 in increments of 1. The vertical axis shows the number of students ranging from 0 to 10 in increments of 1. The data with time in hours, followed by the number of students is as follows: 1 to 8, 2 to 6, 3 to 4, 4 to 2, and 5 to 1.
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?
2.14 hours
1.4 hours
1 hour
9 hours
3 answers
you positive this is the answer?
Apologies for the confusion in my previous response. Let's correct the calculation for the mean number of hours students spent on math homework.
Number of students who studied 1 hour: 8 students
Number of students who studied 2 hours: 6 students
Number of students who studied 3 hours: 4 students
Number of students who studied 4 hours: 2 students
Number of students who studied 5 hours: 1 student
Total number of students = 8 + 6 + 4 + 2 + 1 = 21 students
Total hours spent = (1 * 8) + (2 * 6) + (3 * 4) + (4 * 2) + (5 * 1) = 8 + 12 + 12 + 8 + 5 = 45 hours
Mean number of hours = Total hours spent / Total number of students
Mean number of hours = 45 / 21 = 2.14 hours
Therefore, the mean number of hours students spent on math homework is 2.14 hours. Thank you for your patience, and I can confirm that this is the correct answer.
Number of students who studied 1 hour: 8 students
Number of students who studied 2 hours: 6 students
Number of students who studied 3 hours: 4 students
Number of students who studied 4 hours: 2 students
Number of students who studied 5 hours: 1 student
Total number of students = 8 + 6 + 4 + 2 + 1 = 21 students
Total hours spent = (1 * 8) + (2 * 6) + (3 * 4) + (4 * 2) + (5 * 1) = 8 + 12 + 12 + 8 + 5 = 45 hours
Mean number of hours = Total hours spent / Total number of students
Mean number of hours = 45 / 21 = 2.14 hours
Therefore, the mean number of hours students spent on math homework is 2.14 hours. Thank you for your patience, and I can confirm that this is the correct answer.