Which statement is correct about clustering?

$1.$

Clustering is an supervised $($predictive$)$ data mining method that is used to create association rules.

$2.$

Clustering is an supervised $($predictive$)$ data mining method that is used to group data based on their similarities and dissimilarities.

$3.$

Clustering is an unsupervised $($descriptive$)$ data mining method that is used to group data based on their similarities and dissimilarities.

$4.$

Clustering is an unsupervised $($descriptive$)$ data mining method that is used to create association rules.