Scoring formula
Alignment = IF X1_3 missing (0.4*X1_1 + 0.4*X1_2 + 0.2*X1_4) IF NOT [(0.4*X1_1 + 0.4*X1_2 + 0.2*X1_4)+X1_3]
Relevance = (X2_1+X2_2+X2_3+X2_4+X2_5+X2_6+X2_7) / count of non-missing variables