1 to 3. Tianjin University of Finance and Economics, located in Tianjin, is a key university in Tianjin and an important base for cultivating senior economic management talents in northern China. According to relevant information, there are 3 students majoring in big data of business administration in this school every year, with a ratio of 1 3. The scientific research guarantee rate of each college and each major is different. The research guarantee rate refers to the proportion of students who are exempt from examination to the total number of graduates, or the proportion of students who are exempt from examination to the total number of students admitted.