Question: Calculating Portfolio Betas. You own a stock portfolio invested 15 percent in Stock Q, 25 percent in Stock R, 40 percent in Stock S, and 20 percent in Stock T. The betas for these four stocks are .75, .87, 1.26, and 1.76, respectively. What is the portfolio beta? The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.