are portfolio return, portfolio variance and portfolio Std can determine risk-adjusted return? and which one I should consider to determine risk?

Weight ER Std Corr Portfolio 1 CBA BHP 0.5 0.00614 0.04543 0.12250 0.5 Weight 0.02641 ER 0.06288 Std Corr Portfolio 2 CBA CPU 0.5 0.5 Weight 0.00614 0.01424 ER 0.04543 0.05714 Std 0.33998 Corr Portfolio 3 CBA CLS 0.5 0.5 0.00614 0.02388 0.04543 0.05908 0.00036 Portofolio return Portofolio Variance Portfolio Std 0.0163 Portofolio return 0.0017 Portofolio Variance 0.0410 Portfolio Std 0.0102 Portofolio return 0.0018 Portofolio Variance 0.0421 Portfolio Std 0.0150 0.0014 0.0373 0.5 Weight ER Std Corr Portfolio 4 BHP CPU 0.5 0.02641 0.06288 0.10589 0.5 Weight 0.01424 ER 0.05714 Std Corr Portfolio 5 BHP CLS 0.5 Weight 0.02641 0.02388 ER 0.06288 0.05908 Std (0.06583) Corr Portfolio 6 CPU CLS 0.5 0.5 0.01424 0.02388 0.05714 0.05908 0.17298 Portofolio return Portofolio Variance Portfolio Std 0.0203 Portofolio return 0.0020 Portofolio Variance 0.0447 Portfolio Std 0.0251 Portofolio return 0.0017 Portofolio Variance 0.0417 Portfolio Std 0.0191 0.0020 0.0445