Suppose Ford stock has an expected return of $15\%$ and a volatility of $38\%,$ and Molson$-$Coors Brewing has an expected return of $11\%$ and a volatility of $29\%.$ If the two stocks are uncorrelated,

a$.$ What is the expected returnand volatility of a portfolio consisting of $74\%$ Ford stock and $26\%$ of Molson$-$Coors Brewing stock?

b$.$ Given your answer to $($a$),$ is investing all of your money in Molson$-$Coors stock an efficient portfolio of these two stocks?

c$.$ Is investing all of your money in Ford an efficient portfolio of these two stocks?