问一下sit的这个graduate certificates 和正儿八经的master degree 的区别

求有没有知道的讲解下这个graduate certificates 和master degree的区别，刚刚看了一下sit 的官网，上面写着The Department currently offers graduate certificates in Applied Statistics and Stochastic Systems. Each program consists of four courses, including one elective chosen with the consent of the departmental advisor. Most courses may be used toward a master's degree, as well as for the certificate. 这个是说应用数学硕士专业除了修专业必修的课外，如果在修四门统计的课程可以附带一个发一个统计的证书吗？意思是还是应用数学的学位喽。w大，k姐，各位地理大牛只能的能不能科普一下。