Question
Make a less than cumulative frequency table for the given frequency distribution.
| I.Q. | 60-70 | 70-80 | 80-90 | 90-100 | 100-110 | 110-120 | 120-130 |
| Frequency | 2 | 5 | 12 | 31 | 39 | 10 | 4 |

