Statistics is the science and practice of developing human knowledge through the use of empirical data expressed in quantitative form. It is based on statistical theory which is ... a branch of applied mathematics. Within statistical theory, randomness and uncertainty are modeled by probability theory.
Statistics and probability are interdisciplinary. See especially: Mathematics, Applied Mathematics, Anthropology, Economics, Education, Political Science, Psychology, Sociology, Business, History and Philosophy of Science, Leisure Reading — Science and Technology.
Related topics include: Your Scholarly Identity (ORCID), Designing Documents with LaTeX, Research Data Services, Scholarly Communication, Open Access Publishing at Notre Dame.
One readable magazine from the American Statistical Association is Chance.
The most accessible encyclopedia, with definitions, is Wolfram Math World. Another more technical work is Encyclopedia of Statistical Sciences.
One of the best sources for biographies of mathematicians and statisticians is the MacTutor History of Mathematics Archive.
Careers in statistics and probability are discussed in depth in the Bureau of Labor Statistics' Occupational Outlook Handbook's group of Math Occupations.