$\backslash$table$[[$January$,+15,+1],[$February$,-3,+1],[$March$,+5,+4],[$April$,+7,+13],[$May$,-4,+2],[$June$,+3,+5],[$July$,-2,-3],[$August$,-8,-2]]$

Required: $$

$-1.$ Calculate the variance and standard deviation of each stock.

$-2.$ Which stock is riskier if held on its own?

o$.$ Now calculate the returns in each month of a portfolio that invest

$.$ Is the variance more or less than halfway between the variance o

Complete this question by entering your answers in the tabs

Req A$1$

Calculate the variance and standard deviation of each stock. $($Do not $2$ decimal places.$)$

$\backslash$table$[[,\backslash$table$[[$Digital Cheese$],[$Retum$]],\backslash$table$[[$Executive Fruit$],[$Return$]],],[$Variance$,17\mathrm{.}83,\%,15\mathrm{.}55,\%$