Answer:
1.05
Step-by-step explanation:
Beta measures systematic risk. Systemic risk are risk that are inherent in the economy. They cannot be diversified away.
The higher beta is, the higher the systemic risk and the higher the compensation demanded for by investors
The portfolio's beta can be determined by adding together the weighted beta of each stock in the portfolio
weighted beta of a stock = percentage of the stock in the portfolio x beta of the stock
total value of the portfolio = $30,000 + $70,000 = $100,000
percentage of stock A in the portfolio = $30,000 / $100,000 = 0.30
percentage of stock B in the portfolio = $70,000 / $100,000 = 0.70
weighted beta of stock A = 0.30 x 0.7 = 0.21
weighted beta of stock B = 0.70 x 1.2 = 0.84
Portfolio beta = 0.21 + 0.84 = 1.05