Question $3$

Study the table below.

$\backslash$table$[[$Size $(m),$Mass retained,$\%$ Retained,Cumm$\%$ ret ained,Cumm $\%$ Passing$],[-600+425,0,,,],[-425+300,3,2,,,],[-300+212,6,9,,,],[-212+150,15,2,,,],[-150+106,16,6,,,],[-106+75,11,4,,,],[-75,46,7,,,],[$Tot al$,,,,]]$

$3\mathrm{.}1.$ Complete the table $(15)$

$3\mathrm{.}2.$ Draw PSD analysis graph between $\%$passing and Size $($um$)(5)$

$3\mathrm{.}3.$ Determine the $P80$ of $75$ um $(5)$

$3\mathrm{.}4.$ what can deduce from the $P80$ of $75$ um $(2)$