Dr. Hannah Brandt, PhD
Statistician
Applied statistician translating rigorous probability theory into clear, accurate tools for researchers and practitioners.
Dr. Hannah Brandt is a mathematical statistician at Helmholtz Zentrum München, where her work centres on the design and analysis of large-scale epidemiological cohort studies. Over a fifteen-year career spanning academic research, university teaching, and applied consultancy, she has developed and validated statistical methods for data with complex dependency structures, work that has appeared in journals including Biometrics, Statistics in Medicine, and the Journal of the Royal Statistical Society. Her doctoral research at Ludwig Maximilian University of Munich examined asymptotic properties of nonparametric distribution estimators, a foundation that informs the precision she brings to every numerical tool she builds or reviews.
At OnlyCalculators, Dr. Brandt authors and reviews calculators covering descriptive statistics, inferential procedures, and probability distributions. The problems she addresses are concrete: a clinician who needs to verify a confidence interval before reporting trial results, a student working through a chi-square test without access to statistical software, or an engineer checking tail probabilities on a Poisson process. She insists that each calculator surface the assumptions baked into its formulas and flag the conditions under which a result should be interpreted with caution, rather than presenting a single number stripped of context.
Her teaching years at the Technical University of Munich sharpened her ability to identify where standard explanations of statistical concepts lose non-specialists, and she carries that editorial instinct into every piece of documentation she writes for OnlyCalculators. Dr. Brandt holds fellowship with the Royal Statistical Society and is an active member of the Bernoulli Society, where she has chaired sessions on distribution theory at international meetings. She is fluent in German and English, and collaborates regularly with research teams in both languages across Europe.
“Every calculator she approves must produce results that match established reference implementations to at least six significant figures, carry an explicit statement of its mathematical source, and include a worked example a careful reader can verify by hand.”