Please solve the following problems using the long method with formulas. (Do not solve using the calculator functions for Data and Stat). Please show all calculations and not just the answer.

2. Calculate the expected return; Variance and standard deviation of a ABC Inc. stock if the economy is expected to be very good with 6% chance and expected to be normal with 60% chance and likely to be in recession with 34% chance and the expected return on this stock are likely to be 8.4%; 8.9% and 9.2% respectively if economy is in Boom; Normal or in Recession.