Abstract
In the last note of this lecture multivariate analyses based on fuzzy theory, especially fuzzy quantification theory and fuzzy hierarchical clustering method are explained. In preoparation for discussing these methods the concepts and definitions of fuzzy events and fuzzy relation are clarified. An analysis of purchasing factors and a clutiering of various drinks are exemplified in the explanations of the fuzzy quantification theory and the fuzzy hierarchical clustering, respectively. At the close of the lecture, brief comments are given on the applicotion of the fuzzy theory to real problems and its future view.
