Statistical classification is the problem of identifying the sub-population to which new observations belong, where the identity of the sub-population is unknown, on the basis of a training set of data containing observations whose sub-population is known. Therefore these classifications will show a variable behavior which can be studied by statistics.
However, we do get a number of questions on multi-class classification. A simple search for "multi" in the "classification" tag currently returns 607 hits.
I am kind of wondering whether it would make sense to introduce a new tag like "multi-classification". Or "multi-class-classification", which sounds more correct but also more cumbersome - anything as long as the tag shows up when people start typing "multi". Or do we assume that simply searching for "multi" in the "classification" tag is enough?