I have the following:
Decision Variable A: rating =80% weighting = 5%
Decision Variable B: rating = 30% weighting =10%
Decision Variable C: rating = 53% Weighting = 50%
Decision Variable D: rating = 10% weighting = 15%
Decision Variable E: rating = 57% weighting = 20%
Determine the overall probability (rating), given all the ratings and weightings that, when A, B, C, D and E are combined.