Over the past 3 years an investment returned .15,-.11,.07 what is the variance of returns.

A stock is expected to return 9% in a normal economy, 13% if the economy boom, and lose 5% if the economy moves into a recessionary period. Economist predict a 55% chance fo a normal economy, a 22% chance of a boom, and a 23% chance of recession. the expected return ont he stock is ___%

The investor total return from an investment is 7.00%. the inflation rate for the year is 4.00%. the investor real rate of return from the investment is ___%

a project has a beta of 1.13, the risk free rate of 3.7% and the market risk premium of 6.6% the expected rate of return is ___%