Probability, stat inference, linear models, sampling, design of experiments.
Five deep-dives: syllabus, booklist, paper analysis, strategy, PYQ trends (2021–2025).
Five long-form articles. Read in order or jump to what you need.
The official Statistics syllabus decoded topic by topic — what each line really means, how UPSC asks it, and where to draw the boundaries of your preparation.
The exact reading order topppers follow for Statistics — NCERT base, core standard books, supplementary reference, notes strategy and what to skip.
A paper-pattern analysis of Statistics — question structure, sectional weightage, marks distribution, difficulty trends and recurring themes over the last 5 years.
A realistic month-wise preparation strategy for Statistics — reading, notes, answer writing, revision and mock tests, with time allocations by topic.
Year-by-year analysis of Statistics Mains PYQs from 2021-2025 — topic distribution, repeated themes, difficulty shift and what it signals for the next cycle.
80 questions across 5 years, taken from the official papers. Every one has its own page with the directive word, marks, word limit and evaluation rubric.
Probability theory and statistical inference · Probability theory and distributions · Statistical Quality Control and Operations Research · Statistical Quality Control and Reliability Theory · Agricultural statistics, fertility rates, and econometric model identification · ANOVA, sampling techniques, multivariate analysis · Bivariate normal distribution, principal components, linear regression estimation · Bivariate normal, joint distributions, conditional expectation, generalized least squares
solve (29) · derive (15) · explain (14) · prove (6) · calculate (5) — see the directive words guide for how each one changes the answer you should write.
80 questions at 50 marks
Browse all 80 Statistics previous year questions →Write an answer, upload it, and our evaluator scores it on content, structure, examples and directive-word fidelity — trained on UPSC-style marking.