The following spreadsheet contains monthly returns for Cola Co$.$ and Gas Co$.$ for $2022$

Using these$$ data, estimate the average monthly return and the volatility for each stock.

Please calculate the volatility for both Cola and gas co$.$ Data will be given bellow.

Date Cola $(\%)$ Gas $(\%)$

Jan $7\mathrm{.}10-17\mathrm{.}10$

Feb $5\mathrm{.}307\mathrm{.}40$

Mar $10\mathrm{.}20-4\mathrm{.}70$

Ap $0\mathrm{.}6014\mathrm{.}70$

May $-3\mathrm{.}90-1\mathrm{.}40$

June $11\mathrm{.}50-5\mathrm{.}50$

July $-10\mathrm{.}10-2\mathrm{.}90$

Aug $15\mathrm{.}4211\mathrm{.}22$

Sep $-10\mathrm{.}12-0\mathrm{.}80$

Oct $9\mathrm{.}901\mathrm{.}80$

Nov $-6\mathrm{.}37-2\mathrm{.}50$

Dec $13\mathrm{.}4011\mathrm{.}10$