marketing, testing, ab, comparison, research, advertise, method, a-b, test, marketer, experiment, man, connects, puzzles, letters, b, multivariate, improving, products, services, based, statistics, observations, A, development, variation, best, analytics, strategy, set, choice, business, optimization, split, result, advertising, progress, analysis, improvement, statistic, process, study, variations, promotion, market, product, innovation, analyzing, information, finance






