ASSOCIATIONS - Are occurrences linked to a single event.
E.g. A study of Supermarket Purchasing patterns might reveal that,
when Corn Chips are purchased, 65% of the time. a Cola drink is also purchased. But when there is a Promotion, cola drink is purchased 85% of the time with Corn Chips/.
This information helps the Managers make better decisions because they have learned the profitability of a promotion.
SEQUENCES - Sequences of events are linked over time.
We might find for example, that if a House is purchased, 65% of the time a new refrigerator will be purchased within two week , and 45% of the time an Oven will be bought within one month of the home purchase.