Answer:
The portfolio's beta is 1.4
Explanation:
The portfolio beta is the weighted average of the individual betas of the stocks that form up the portfolio. For a two stock portfolio, the formula for portfolio beta can be written as:
Portfolio beta = wA * βa + wB * βb
Where,
Investment in Potts = 250000
Investment in Stohs = 500000 - 250000 = 250000
The portfolio beta = (250000/500000) * 2 + (250000/500000) * 0.8
Portfolio beta = 1.4