INV 1 4b You have invested in a portfolio of 60% in risky assets (Portfolio R) and 40% in T-bills. The risky portfolio is described below: E(r R )=12% σ R =15% T-bill rate 3% Expected Return on...

INV 1 4b

You have invested in a portfolio of 60% in risky assets (Portfolio R) and 40% in T-bills. The risky portfolio is described below:

E(r_R)=12%

σ_R
=15%

T-bill rate 3%

Expected Return on Overall Portfolio is 8.4%

What is the standard deviation of your overall portfolio?