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I need help finding the variance for stock a and stock b$**$

Using the data in the following table, $,$ estimate the average return and volatility for each stock.

The return of stock $A$ is $\%.($Round to two decimal places

The return of stock $B$ is $\%.($Round to two decimal places

Data table

The variance of stock $A$ is $($Round to five decimal places

$($Click on the following icon $$ in order to copy its contents into a spreadsheet.$)$

$\backslash$table$[[,$Realized Returns$],[$Year$,$Stock A$,$Stock B$],[2017,-8\%,15\%$