Hello, I have this exercise from my Investment class with the answers but I need to know the manual procedure (not Excel) of how to reach those results. Could you help me? Thank you.

Q4 The following information pertain to MM Company and two indexes Proxy Index Rate of return for MM Com. General Index Year -8 20x1 20x2 20x3 20X4 Average Variance St. Dev. 69 64 75.5 8.6891 8.3066 8.0000 68 Cov (MM, Index) Corr coff Beta 70 0.9698 1.0145 0.9782 1.0625