Given the data below, calculate the expected return, variance
Given the data below, calculate the expected return, variance, and standard deviation of the following company.
In a recessionary economy, which is expected to occur with a 30% probability, the expected returns would be -10%.
In an expanding economy with an expected probability of occurrence of 20%, the expected return would be 10%.
In a normal economy, expected to occur 50% of the time, the expected return would be 5%.