What is the test for extrapolating data from a random sample?

7 See Mathews v. Eldridge, 424 U.S. 319, 335, 96 S.Ct. 893, 903, 47 L.Ed.2d 18 (1976). Mathews prescribed a three-prong analysis and balancing of (1) the private interest affected; (2) the risk of erroneous deprivation of that interest; and (3) the government interest. As applied to extrapolation from a random sample, if an opportunity is provided to rebut the findings with respect to the initial sample, then the risk of erroneous deprivation approaches zero. See generally Friendly, Some Kind of Hearing, 123 U.Pa.L.Rev. 1267, 1295-1304 (1975).