The research conclusions can serve the HEI’s management to discuss the HEI and academic reactionaries about problems regarding student’s educational success. Some of these problems are hard to solve simply because usual statistical methods are not deep enough to discover the hidden patterns and knowledge, useful for education processes planning and organizing. By knowing the student success rates in advance HEI’s management can be contributed effectively by planning the strategy and policy of the institution quite a long time before even the enrolment process of the students. This contribution can be achieved as a substantial asset to invest into the data mining technology and solutions.