Match the following:
| List - I | List - II | ||
|---|---|---|---|
| A) | AA + XO | I) | Female |
| B) | AA + XXX | II) | Intersex |
| C) | AA + XXY | III) | Metamale |
| D) | AAA + XXX | IV) | Metafemale |
Find the variance of the following frequency distribution:
| Class Interval | ||||
| 0--4 | 4--8 | 8--12 | 12--16 | |
| Frequency | 1 | 2 | 2 | 1 |