Determine the expected return and variance for a portfolio composed of 25% of security A and 75% of security B.Determine the expected return and variance of a portfolio that contains 78% security A and 22% security B. Is this portfolio superior to that one in (a) above?Calculate the expected return and variance of a portfolio that contains 60% security C and 40% security D.If an investor were to select among the following three portfolios, which one would he or she prefer?An equally-weighted portfolio of securities A, B, and C.An equally-weighted portfolio of A, B, and D.An equally-weighted portfolio of B, C, and D.If a risk-adverse investor desires to hold a portfolio of only two securities and expects a return of 11%, what would you advise the investor to do?

Determine the expected return and variance for a portfolio composed of 25% of security A and 75% of security B.

Determine the expected return and variance of a portfolio that contains 78% security A and 22% security B. Is this portfolio superior to that one in (a) above?

Calculate the expected return and variance of a portfolio that contains 60% security C and 40% security D.

If an investor were to select among the following three portfolios, which one would he or she prefer?

An equally-weighted portfolio of securities A, B, and C.

An equally-weighted portfolio of A, B, and D.

An equally-weighted portfolio of B, C, and D.

If a risk-adverse investor desires to hold a portfolio of only two securities and expects a return of 11%, what would you advise the investor to do?

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