Suppose Johnson & Johmson and walgreens company have the expected returns and volotilites shown below with a correlation of 22.5%

E[R] E[R]

Johnson & Johnson 7.3% 16.4%

Walgreens 10.7% 19.3%

For a portfolio that is equally invested in Johnson & Johnson and Walgreens stock, calculate:

a. the expected return.

b. the volatility (standard deviation).