Chapter 6, Data Mining Models in Excel Hands-On Examples

1. Use the previous knowledge of the business to discard these associations.
2. Not necessarily. These types of analysis are usually dependent on the business domain and even on the particular place where we perform them. This means that some results can be generalized, but, often, not all of them.
3. It means that there is no customer that started buying products by the time indicated in the column and that kept buying after the period of time shown in the row.
4. There are no customers that old (in terms of time spent as customers).
5. For example, focusing on those that stop buying and aiming ad campaigns at them.