\(\begin{array}{c|c} x & 1 & 2 & 3 & 4 & 5 \\ \hline f & y + 2 & y - 1 & 2y - 3 & y + 4 & 3y - 4\end{array}\)
This table shows the frequency distribution of a data if the mean is \(\frac{43}{14}\), find y
| Class interval | 1 - 5 | 6 - 10 | 11 - 15 | 16 - 20 | 21 - 25 |
| Frequency | 6 | 15 | 20 | 7 | 2 |
Estimate the median of the frequency distribution above