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where <math>E(r)</math> is the asset's expected return, <math>r_f</math> is the risk-free rate (normally, the rate of return of a United States T-bill) and <math>\sigma</math> is the risk associated with the investment.
where <math>E(r)</math> is the asset's expected return, <math>r_f</math> is the risk-free rate (normally, the rate of return of a United States T-bill) and <math>\sigma</math> is the risk associated with the investment.
[[Category:Finance]]