Chapter 6: Risk and Project Appraisal or Chapter 7: Portfolio Theory or Chapter 8: CAPM and Multi-Factor Models. Please solve as soon as possible, I need this. In 10 or 20 minutes.

1. The returns on shares of S and T vary depending on the state of the economic growth.

State of economy	Probability of Economic state occurring	Returns on S if economic state occurs (%)	Returns on T if economic state occurs (%)
Recession	0.20	-10	19
Growth	0.60	19	17
Boom	0.20	40	14

Required:

1. Calculate the expected return and standard deviation for Share S and T.
2. What are the covariance and the correlation coefficient between returns of S and T?