True or False: A 25% support percent in an association set would be considered too low to be of any use.

• A. True
• B. False
• C. Cannot Be Determined
• D. Sometimes

Answer: (B)

Support in association rule mining shows how common an itemset is across all transactions. If an itemset has 25% support, it appears in about one quarter of the transactions. That’s a substantial presence, not something inherently useless. Whether 25% is meaningful depends on the dataset and the minimum support you set. Often, analysts choose a minimum support well below 25% (for example, 5% or 10%), in which case 25% qualifies as frequent and can lead to useful rules. In other contexts, a higher threshold might be used, but there isn’t a universal rule that 25% is too low for usefulness. So the statement is false.