$4-2.$ A soil sample was taken from the site of a proposed borrow pit and sent to the laboratory for a Standard Proctor test $($ASTM D $698).$ Results of the test are as follows:

$\backslash$table$[[\backslash$table$[[$Determination$],[$Number$]],1,2,3,4,5],[$Dry unit weight $(l\frac{b}{f}{t}^3),107\mathrm{.}0,109\mathrm{.}8,112\mathrm{.}0,111\mathrm{.}6,107\mathrm{.}3],[$Moisture content $(\%),9\mathrm{.}1,11\mathrm{.}8,14\mathrm{.}0,16\mathrm{.}5,18\mathrm{.}9]]$

Plot a moisture content versus dry unit weight curve and determine the soil's maximum dry unit weight and optimum moisture content.