The figure in the popup window,

shows the one$-$year return distribution for RCS stock. Calculate:

a$.$ The expected return.

b$.$ The standard deviation of the return.

Note: Make sure to round all intermediate calculations to at least five decimal places.

Graph$/$chart

a$.$ The expected return.

The expected return is

$\%.($Round to two decimal places.$)$

b$.$ The standard deviation of the return.

The standard deviation is

$\%.($Round to two decimal places.$)$