During a lab exercise, students in Professor Garza's class rolled a 6-sided die and recorded the results. Which number was rolled the fewest times?
Rolls of a | 6-sided die
Numbers rolled | Frequency
1 | 18
2 | 15
3 | 4
4 | 10
5 | 7
6 | 2
Look at the frequency column. Find the least frequency. The least frequency is 2, which is in the row for 6. 6 was rolled the fewest times.