Hello everyone, I am having issues constructing this investment opportunity. I sadly do not understand. Would really appreciate some help. Thank you!

1. Use the following data to construct an investment opportunity set. The format is similar to that shown in your text. Vary the weights in bonds and stocks by ten percent. a. b. Provide an indication of the mix of stocks and bonds that generate the minimum variance portfolio Provide an indication of the mix of stocks and bonds that generate the optimal portfolio E{R} ob psb E{R} 4.5 o's 19 Rf 2 12 8.75 0.25 Portfolio weights Ws = (- Wb) ExD Return Std Dev Wb 1.000