What is the major product Y in the following reaction sequence?




The sequence first involves diazotization of aniline to form a diazonium salt.
Hydrolysis gives phenol, which undergoes Williamson ether synthesis to give anisole.
Bromination of anisole in acetic acid selectively yields para-bromoanisole as the major product.
Find the variance of the following frequency distribution:
| Class Interval | ||||
| 0--4 | 4--8 | 8--12 | 12--16 | |
| Frequency | 1 | 2 | 2 | 1 |