Please provide excel formulasConsider the following information:

a$.$ What is the expected return on an equally weighted portfolio of these three stocks?

Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$

b$.$ What is the variance of a portfolio invested $22$ percent each in A and $B$ and $56$ percent in C$?$

Note: Do not round intermediate calculations and round your answer to $5$ decimal places, e$.$g$.,\mathrm{.}16161.$

a$.$ Expected return

b$.$ Variance of portfolio