Answer:
The portfolio beta is 1.207
Step-by-step explanation:
The portfolio beta is the weighted average of the individual stock betas that form up the portfolio. The weightage of each stock in the portfolio is calculated on the basis of investment in that stock as a proportion of total investment in the portfolio. The portfolio beta is calculated as follows,
Portfolio beta = Weight of Stock A * Beta of Stock A + Weight of Stock B * Beta of Stock B + ... + Weight of Stock N * Beta of Stock N
Portfolio beta = 0.17 * 0.62 + 0.38 * 1.17 + 0.45 * 1.46
Portfolio beta = 1.207