Match the following:
| List - I | List - II | ||
|---|---|---|---|
| A) | Radius, ulna | I) | Fore limb |
| B) | Tibia, fibula | II) | Hind limb |
| C) | Scapula, clavicle | III) | Pectoral girdle |
| D) | Ilium, pubis | IV) | Pelvic girdle |
Find the variance of the following frequency distribution:
| Class Interval | ||||
| 0--4 | 4--8 | 8--12 | 12--16 | |
| Frequency | 1 | 2 | 2 | 1 |