Cumulative frequency
number10 pts
Students rated a course on a scale from 1 (very poor) to 5 (excellent):
| Rating | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| Number of students | 6 | 14 | 31 | 52 | 22 |
What percentage of students gave the course a three at most? Enter the cumulative relative frequency in % to one decimal place.