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

9 hours

1 hours

It is not possible to determine the mean number of hours students spent on math homework based on the information provided. In order to calculate the mean, we need the specific number of hours each student spent on math homework, not just a visualization of the data.