answear the stansard deviation only

Question $2$ The rates of return on Cherry Jalopies, Inc., stock over the last five years were $17$ perocat, $11$ percent, $-5$ percent, $3$ percent, and $14$ percent. Over the same period, the returns on Straw Construction Company's stock were $16$ percent, is peroent, $-8$ percent, $1$ percent, and $22$ percent.

Calculate only the $(($standard deviation for the rates of returns of the two stocks$))$