$5.$ Portfolio risk and return

Ariel holds a $$10,000$ portfolio that consists of four stocks. Her investment in each stock, as well as each stock$$s beta, is listed in the following table:

Stock

Investment

Beta

Standard Deviation

Andalusian Limited $($AL$)$ $$3,5000\mathrm{.}8015\mathrm{.}00\%$

Zaxatti Enterprises $($ZE$)$ $$2,0001\mathrm{.}3011\mathrm{.}50\%$

Water and Power Co$.($WPC$)$ $$1,5001\mathrm{.}1516\mathrm{.}00\%$

Makissi Corp. $($MC$)$ $$3,0000\mathrm{.}5019\mathrm{.}50\%$

Suppose all stocks in Ariel$$s portfolio were equally weighted. Which of these stocks would contribute the least market risk to the portfolio?

Andalusian Limited

Makissi Corp.

Zaxatti Enterprises

Water and Power Co$.$

Suppose all stocks in the portfolio were equally weighted. Which of these stocks would have the least amount of stand$-$alone risk?

Zaxatti Enterprises

Andalusian Limited

Makissi Corp.

Water and Power Co$.$

If the risk$-$free rate is $4\%$ and the market risk premium is $5\mathrm{.}5\%,$ what is Ariel$$s portfolio$$s beta and required return? Fill in the following table:

Beta

Required Return

Ariel$$s portfolio please find my beta and required return