In this paper, a simple and multiple linear regression model has been developed to analyze and compare math test results of two student groups in the medical high school "Rezonanca", more precisely the students of the two tenth grades in the subject of mathematics of classes X- 3 and X - 7. This paper also presents some exam exercises, which were solved by students who did not show much success in the exam, students who showed average success in the exam and those who showed excellent success. This model is based on student data, including homework, their classroom commitment, extra hours, pre-grades, and finally testing. The research in this paper shows that in reality homework activity during lessons, commitment, extra lessons and pre-test have a major impact on the student's final grade. Statistical meanings of the relationship between variables are provided. Excel and SPSS were used to obtain the results.