If your bachelor program contains courses such that you fulfill the “Specialised knowledge 1” criterium then it counts as study program with a quantitative emphasis. Otherwise the admission commitee has to decide.
Yes, for example all degrees counting as a “degree in a study programme with a quantitative emphasis”. However, the admission commission decides whether specific degrees are accepted.
The admission rules contain no regulation concerning the date of the language certificates.
Yes, you can use the table on the comparison of language exams (English) of the Language centre HU to obtain the score that is needed.
The admission committee has the final decision. Please provide a description on the content of the courses, especially if it is not clear. Micro- and macroeconomy do not count as math courses. The same holds for accounting and logistics.
There is no general information on the grades needed. It varies depending on the year you apply and the mathematics courses you took before, more information on calculating the application grade can be found in the program specific admission rules (German: Fachspezifische Zugangs- und Zulassungsregeln des Master Statistik in the pdf document in III.b)). Information on the NC of previous years can be found on the HU website in the “Studienorientierungstool” esra.