10 1 ideological and political theory; 20 1 English1; 303 mathematics third class. The 807 Probability and Statistics Examination takes many subjects, including 10 1 ideological and political theory; 20 1 English1; 303 Mathematics III; 807 probability statistics, the direction of postgraduate entrance examination has applied statistics; Statistics; Business administration, etc. Probability statistics is a mathematical method to study the statistical laws of random phenomena in nature, which is called probability statistics, also called mathematical statistics.