更大的城市会采用这种做法吗?
我在本文后面讨论的X平方分布程序中会采用这种做法。
This is performed in the Chi Square program that I discuss later in this article.
与其让消费者退订,还不如向消费者提供改变偏好的选择,但是采用这种做法的零售商却不到30%。
Fewer than 3 in 10 retailers offer unsubscribers the option to change preferences rather than unsubscribe.
应用推荐