Daniel Hernández Hernández is a researcher at CIMAT, Guanajuato, Mexico. He is also the academic coordinator of CIMAT. Florencia Leonardi is a researcher in probability and statistics at the University of Sao Paulo, Brazil. She is also the former president of the SLAPEM Ramsés H. Mena is a researcher in statistics at UNAM, Mexico. He is also the director of IIMAS at UNAM. Juan Carlos Pardo Millán is a researcher in probability at CIMAT, Guanajuato, Mexico. He is also the current president of the SLAPEM