please solve and explain

i just need the first question solved and explained. ill do the excel

The following table contains four potential investments along with their anticipated returns in various states of the economy and the associated probability of each outcome. 1. Calculate the expected return, standard deviation, and coefficient of variation for Treasury Bills, Innovate Inc, Stodgy Corp, and Gold Mine Holdings. 2. Compare and contrast each of the four investments based upon their risk and return characteristics. 3. If you create an equally weighted portfolio composed of these four investments, what would your expected return be for each state of the