variance and expected return

What are the variance and expected return of an equally weighted portfolio of all five securities? Return No. 1 2 3 4 5 6 7 8 Sec1 0.027 0.012 -0.022 0.013 -0.011 -0.033 0.029 0.055 Security Returns Sec2 Sec3 -0.023 0.056 0 0.013 -0.01 -0.015 0.034 0.015 -0.023 0.012 -0.061 -0.035 0.026 0.002 0.045 0.047 Sec4 0.002 0.004 0.002 0.01 -0.029 -0.022 0 0.02 Sec5 0.033 0.017 -0.045 0.008 -0.019 -0.024 -0.001 0.056