Question $2$:

Tabulated are the data derived from a drainage basin of $80$ hectares. Drainage basin has six $(6)$ rainfall stations A$,$ B$,$ C$,$ D$,$ E$,$ and F$.$ The corresponding rainfall depth for each station is given below in the table. Rainfall data has been used to draw rainfall isohyetal lines and the areas covered with each of the rainfall isohyetal lines. Use the following table to determine the average rainfall $($up to three decimal places$)$ using the following two methods. $(20$ points$)$

$($i$)$ Arithmetic$-$mean method $(10$ points$)$

$($ii$)$ Isohyetal method $(10$ points$)$

$\backslash$table$[[$Station$,\backslash$table$[[$Rainfall$],[$depth$],[(cm)$

Question $2$:

Tabulated are the data derived from a drainage basin of $80$ hectares. Drainage basin has six $(6)$ rainfall stations A$,$ B$,$ C$,$ D$,$ E$,$ and F$.$ The corresponding rainfall depth for each station is given below in the table. Rainfall data has been used to draw rainfall isohyetal lines and the areas covered with each of the rainfall isohyetal lines. Use the following table to determine the average rainfall $($up to three decimal places$)$ using the following two methods. $(20$ points$)$

$($i$)$ Arithmetic$-$mean method $(10$ points$)$

$($ii$)$ Isohyetal method $(10$ points$)$

$\backslash$table$[[$Station$,\backslash$table$[[$Rainfall$],[$depth$],[(cm)$