Final answer:
The volatility of the portfolio can be calculated using the formula for weighted average volatility.
Step-by-step explanation:
To determine the volatility of the portfolio, we can use the formula for the weighted average volatility.
First, we calculate the weighted average of the volatilities of the two stocks:
Volatility portfolio = (Weight 1 × Volatility 1) + (Weight 2 × Volatility 2)
Given that the first stock has 70% of the portfolio and a volatility of 35%, and the second stock has the remaining 30% of the portfolio and a volatility of 18%, the calculation would be:
Volatility portfolio = (0.7 × 35%) + (0.3 × 18%) = 0.245 + 0.054 = 0.299 = 29.9%
Therefore, the volatility of the portfolio is 29.9%.