Data / Business Analyst · 6-day plan
Interview prep
14 short lessons, 4 cheat sheets, and 412 practice questions across aptitude and statistics. Start with Lesson 0 if Excel is new to you, then do one day per day, retest on day 6 with the mock, and use the question banks for daily drilling between interviews.
MissionAnswer the classic Excel, SQL, stats, puzzle, aptitude and GD questions out loud, with confidence, within a week. MISSION.md
Day 0 · Excel basics (start here)
Day 3 · SQL order & descriptive stats
Day 5 · Puzzles & aptitude
Question banks · 412 questions
Pick topics, practise with instant explanations, then switch to timed exam mode. Your scores and weak topics are saved on this device.
Aptitude · 250 questions
25 topics: percentages, ratio, averages, profit & loss, interest, time & work, pipes, speed, trains, boats, ages, mixtures, partnership, number system, HCF & LCM, simplification, mensuration, series, coding, counting, probability, clocks, DI and reasoning.Statistics · 162 questions
10 topics: descriptive stats, dispersion, probability, distributions, sampling & CLT, hypothesis testing, tests, regression, multicollinearity and business-stat traps.Full mock · 30 questions / 30 min
Everything shuffled together, timed, with a topic-by-topic breakdown of what to revise next.| Between interviews | Set | Target |
|---|---|---|
| Day A | Aptitude · 20 mixed questions | 16/20, then review every miss |
| Day B | Statistics · 20 mixed questions | 16/20, then say each miss out loud |
| Day C | Full mock · 30 questions in 30 min | 24/30, then drill the weakest topic |
Cheat sheets (print these)
Excel: lookups, formulas, pivots
SQL: order, joins, GROUP BY
Stats: centre, dispersion, tests, regression
Aptitude formulas, puzzles & GD
💬 Want more practice? Every question bank can generate a fresh set. Ask Claude for extra questions, explain-back drills, or a mock interview.