Answer:
Portfolio beta =0.7467
Step-by-step explanation:
Weight of each asset = 100% / 3 = 33.33%
Portfolio beta = Respective beta * Respective weight
Portfolio beta = (1/3*0.91)+((1/3*1.33)+(1/3*0)
Portfolio beta = 0.746666666
Portfolio beta = 0.7467
Hence, the beta of the portfolio 0.7467.