It turns out that they have the purchase history for hundreds of thousands of customers and they compute what they call a pregnancy score, which is not just whether or not a woman's pregnant, but what her due date is.
原来，塔吉特有成千上万的顾客， 并拥有他们的购买历史记录， 他们用计算机推算出他们所谓的“怀孕分数”， 不仅能知道一个女性是否怀孕， 而且还能计算出她的分娩日期。