1. A system for evaluating tradeoff between a statistical parameter and performance for an electrical circuit design (ECD), the system comprising: a candidate generator for providing candidate vectors for the ECD, each candidate vector having as components a plurality of performance specifications of the ECD; a performance estimator for providing performance vectors for the ECD, each performance vector having as components a plurality of performance values of the ECD, each performance value having a counterpart performance specification; a statistical estimator for receiving the candidate vectors and the performance vectors, and for calculating the statistical parameter for at least one candidate vector in accordance with pre-determined calculations based on the at least one candidate vector and the performance vectors; a filter for receiving the at least one candidate vector and its respective statistical parameter, and for filtering the at least one candidate vector in accordance with pre-determined criteria to produce at least one filtered candidate vector with its respective statistical parameter; and a display system for visually representing the at least one filtered candidate vector and its respective statistical parameter.