The programme can be taken up in the winter and summer semester. Applications can only be submitted online, usually by the closing date for enrollment of the respective semester. You can find information about the application and deadlines here.
If (suspected) deficiencies in statistical and/or quantitative-methodological knowledge exist (<30 ECTS credits), there are ways to make up for the missing knowledge relatively easily and with minimal time loss. This includes relevant foundational modules with a quantitative-methodological and/or statistical focus (e.g., as part of a preparatory module course before admission to the Master's program in Survey Statistics and Data Analysis) that can be completed to meet the admission requirements for the program.