| Frequency Table (Histogram) | |||||
| Bins | Midpoint | Abs. Frequency | Rel. Frequency | Cumul. Rel. Freq. | Density |
| [-25,-20[ | -22.5 | 5 | 0.068493 | 0.068493 | 0.013699 |
| [-20,-15[ | -17.5 | 5 | 0.068493 | 0.136986 | 0.013699 |
| [-15,-10[ | -12.5 | 12 | 0.164384 | 0.30137 | 0.032877 |
| [-10,-5[ | -7.5 | 16 | 0.219178 | 0.520548 | 0.043836 |
| [-5,0[ | -2.5 | 28 | 0.383562 | 0.90411 | 0.076712 |
| [0,5] | 2.5 | 7 | 0.09589 | 1 | 0.019178 |
