b$)$ Consider a DMS with seven possible symbols xi$,$ I $=1,2,......,7$ and corresponding probabilities p$1=0\mathrm{.}37,$ p$2=0\mathrm{.}33,$ p$3=0\mathrm{.}16,$ p$4=0\mathrm{.}07,$ p$5=0\mathrm{.}04,$ p$6=0\mathrm{.}02$ and p$1=0\mathrm{.}01.$ Find its efficiency using

Huffman Coding.