Many courses are offered online even free. Master's degrees in different universities are offered online , but few , provide scholarships to be able to study them. There are many organizations which offer scholarships, you have to serach in google

Apply at the university and your department. Then contact every institution with a possible link to your study :)

Some, perhaps many Universities and Colleges offer free or marked down rates to full time employees. Basically you work full time, then study on your own spare time. Some supervisors may let you occassionally attend class, cram for a critical test or do a little studying during your work schedule. As a student, I was known as a hard serious worker, so I was hired by the Hydrology professor. As an employee, and interested in my work, I decided to go for the MS Degree. The advantage of full time work, and studying, is you probably will live frugally, but able to support yourself and young family. Universities usually have good medical insurance benefits, which I did not have as a student, and it never hurts to get to know all the professors as an employee of the University. Since you mentioned statistics, many graduate students need help with statistical design and analysis. Some students or projects with research budgets might hire someone with good statistical skills and expertise.

Dear Asiel Cabrera Guerrero,

Various institutions for supporting the development of science operate in individual countries. These include public institutions, agencies of ministries of science and higher education, and commercial enterprises that cooperate with universities. In addition, there are also government programs and foundations that fund scholarships for scientists conducting research in order to obtain degrees.

Best wishes,

Dariusz Prokopowicz

You can directly approach the departmental chair and apply for a scholarship, if any. Research funding grants for current ongoing projects, in case they have, may help.