Adam T. Klein and Tarik F. Ajami. Statistical evidence has taken its place as a core class of evidence in complex employment cases. Yet despite the centrality of statistics in the field, there is precious little caselaw addressing the use of expert statistical evidence in complex wage-and-hour litigation. However, as a growing number of practitioners have recognized, class and collective wage-and-hour litigation is as well-suited or better-suited for the use of statistical experts as are Title VII and other employment actions.