Number of students. 8. 6. 4. 2. 1
Number of hours. 1. 2. 3. 4. 5
The table shows the number of hours randomly selected students spent on math homework. What is the mean number of hours students spent on math homework
A. 1.4 hours
B. 1 hour
C. 9 hours
D. 2.14 hours
To find the mean, we first need to calculate the total hours spent on math homework and then divide by the number of students.
Total hours spent: (8 * 1) + (6 * 2) + (4 * 3) + (2 * 4) + (1 * 5) = 8 + 12 + 12 + 8 + 5 = 45
Number of students: 8 + 6 + 4 + 2 + 1 = 21
Mean number of hours spent: 45 hours / 21 students = 2.14 hours
Therefore, the correct answer is D. 2.14 hours.