1. SIMULATION OF A WAITING SYSTEM. Authors: CODRUȚA-OANA HAMAT, OLGA-IOANA AMARIEI.2. THE CONTRIBUTION OF STATISTICAL PROCESSES IN THE CONTROL OF TECHNOLOGICAL PROCESSES. Authors: ALEXANDRU-VICTOR AMARIEI, CODRUȚA-OANA HAMAT, OLGA-IOANA AMARIEI.3. ANALYSIS OF THE QUALITY OF THE SALES FORECAST. Authors: DANIEL-MIHAI AMARIEI, CODRUȚA-OANA HAMAT, OLGA-IOANA AMARIEI.4. ANALYSIS OF THE OPTIMAL LOCATION OF NEW FACILITIES WITHIN A PRODUCTION SECTION. Authors: OLGA-IOANA AMARIEI, ANDREA-AMALIA MINDA, DANIEL-MIHAI AMARIEI.