Group | N | Mean | Std. deviation | Variance |
A | 26 | 54.480055243197 | 8.3410678330790 | 69,573 |
C | 25 | 6.847228678118 | 17.2122591803222 | 296,262 |
Total | 51 | 31.130630456393 | 27.4833756056068 | 755,336 |