You have been given the following probability distribution for the holding-period return (HPR) for the H&M stock. Calculate the standard deviation of the holding period return. (Keep all decimals in your calculations. Use "." as decimal-separator. Your answer should have a precision of 4 decimals such as for instance the number 0.4011.)

State of the Economy Probability HPR

High growth 0.25 0.24

Normal growth 0.65 0.07

Recession 0.10 -0.15