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To find the mean number of hours students spent on math homework, we need to add up all the hours and then divide by the total number of students.
Adding up the data points:
1 + 2 + 2 + 2 + 3 + 3 + 3 + 4 + 4 + 4 + 5 + 6 + 9 = 46
Divide by the total number of students (13):
46 / 13 = 3.54
Therefore, the mean number of hours students spent on math homework is approximately 3.54 hours.