9. The method of claim 1 , wherein the steps of determining a member-level demographic characteristic and determining a first demographic characteristic further comprise: assigning each member, of the first result-base, a confidence distribution, wherein a plurality of values are assigned, each with a confidence level; and combining the confidence distributions.
9. The method of claim 1 , wherein the steps of determining a member-level demographic characteristic and determining a first demographic characteristic further comprise: assigning each member, of the first result-base, a confidence distribution, wherein a plurality of values are assigned, each with a confidence level; and combining the confidence distributions. 10. The method of claim 9 , wherein each confidence distribution represents a demographic characteristic with two values.