$3-1.$ A concrete cylinder having a diameter of $6\mathrm{.}00$ in$.$ and gage length of $12$ in$.$ is tested in compression. The results of the test are reported in the table as load versus contraction. Draw the stressstrain diagram using scales of $1$in$.=0\mathrm{.}05$ ksi and $1$ in $1.=0\mathrm{.}2(10^-3)$in$..$ From the diagram, determine approximately the modulus of elasticity.