Problem $13-9$ Returns and Variances $($LO$1,2)$

Consider the following information:

a$.$ What is the expected return on an equally weighted portfolio of these three stocks? $($Do not round intermediate calculations.

Round the final answer to $2$ decimal places.$)$

Expected return $\%$

b$.$ What is the variance of a portfolio invested $25\%$ each in A and $B$ and $50\%$ in C$?($Do not round intermediate calculations. Round the final answer to $6$ decimal places.$)$

Variance $$