$10\mathrm{.}19$ Compare the parity$-$check matrix of the $(7,4)$ Hamming

code considered in Example $10\mathrm{.}10$ with that of a $(4,1)$ repetition code.

$((10\mathrm{.}10$ Consider a discrete memoryless source with alphabet

$\{$s$\_(0),$s$\_(1),$s$\_(2)\}$ and statistics $\{0\mathrm{.}7,0\mathrm{.}15,0\mathrm{.}15\}$ for its output.$))$

Please I need an answer for $10\mathrm{.}19$ in steps and details.