b$.$ Estimate the relative density and friction angle at depths $6\mathrm{.}1,7\mathrm{.}6,$ and $9\mathrm{.}1$m using the CPT

data.

c$.$ Estimate the relative density and friction angle at depths of $6\mathrm{.}1,7\mathrm{.}6,$ and $9\mathrm{.}1$ m$,$ using the

SPT method.