Exercise $5-81$ Algo

An analyst developed the following probability distribution for the rate of return for a common stock.

a$.$ Calculate the expected rate of return. $($Do not round intermediate calculations. Round your final answers to $2$ decimal places.$)$

Answer is complete but not entirely correct.

b$.$ Calculate the variance and the standard deviation of this probability distribution. $($Round intermediate calculations to at least $4$

decimal places. Round your final answers to $2$ decimal places.$)$

Answer is complete but not entirely correct.