of name categorization would be identifying "words that start with the letter 'a'". There are thousands of words that start with the letter 'a' but none have "more" of this nominal quality than others, meaning that the word starting with the letter 'a' is more important than determining the number of 'a's as the first letters of an instance because this is associated with membership rather than quantifying the data as an ordinal group.

With this, the correlation of two nominal categories is difficult because some relationships that occur