Answer: The correct answers are:
a) i1 → i2
b) i2 → i1
Step-by-step explanation:
Step-by-step explanation:
An association rule is a relationship between two sets of items in a transactional database. In this case, the frequent itemset I = {i1, i2} consists of two items, i1 and i2.
To generate association rules from this itemset, we consider all possible combinations of items. Since the itemset contains two items, we have two possible association rules:
a) i1 → i2: This rule means that if item i1 is present in a transaction, then item i2 is likely to be present as well.
b) i2 → i1: This rule means that if item i2 is present in a transaction, then item i1 is likely to be present as well.
The support and confidence values provided in options c) and d) are additional information about the association rules, but they are not relevant for determining which association rules can be generated from the given itemset I.
In summary, the correct association rules that can be generated from the frequent itemset I = {i1, i2} are:
a) i1 → i2
b) i2 → i1