ss members); Ealy, 514 F. App'x at 304-08 (150 class members). Even statisticians agree that Wal-Mart reaches classes big and small. See, e.g., Dr. Mary Dunn Baker, Class Certification Statistical Analysis Post-Dukes, 27 ABA J. Lab. & Empl. L. 471, 479 (2012) ("[T]he size of the putative class or the number of