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(6 points) The index model has been estimated for TBX and DFA with the following results: RTBX = 0.03 + 0.95RM + eTBX RDFA = -0.02 + 1.6RM + eDFA OM = 0.2, O(eTBX) = 16%, o(eDFA) = 9% Find the R2 for both regression models (i.e., find R78x and R3FA)