Match the following:
| List - I | List - II | ||
|---|---|---|---|
| A) | Thyroid gland | I) | Calcitonin |
| B) | Adrenal medulla | II) | Nor epinephrine |
| C) | Pineal gland | III) | Melatonin |
| D) | Pancreas | IV) | Glucagon |
Each gland produces a specific hormone:
Thyroid – Calcitonin,
Adrenal medulla – Nor epinephrine,
Pineal – Melatonin,
Pancreas – Glucagon.
Find the variance of the following frequency distribution:
| Class Interval | ||||
| 0--4 | 4--8 | 8--12 | 12--16 | |
| Frequency | 1 | 2 | 2 | 1 |