For Exercises 9–12, do the following:
11. Dangerous weapons data from Table 23 on page 68.
2.3.11
(a) and (b)
| Dangerous weapons cases | Frequency | Relative frequency | Cumulative frequency | Cumulative relative frequency |
|---|---|---|---|---|
| 3 | 3 | 0.15 | ||
| 5 | 8 | 0.40 | ||
| 4 | 12 | 0.60 | ||
| 2 | 14 | 0.70 | ||
| 5 | 19 | 0.95 | ||
| 1 | 20 | 1.00 | ||
| Total | 20 | 1.00 |