The main goal is to prepare the next generation of students, postdocs, and researchers to perform statistical analysis over cosmological observations, such as present large scale surveys like BOSS and future as DESI, LSST, SCI-HI, TolTEC, etc. The first part of each day will be devoted to lectures and tutorials providing the basis of statistics/bayesian inference tools. The rest of the day will be dedicated to hands-on sessions for developing projects. A set of projects have been defined.