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8 branches of analytics, product and AI interview questions
Explore eight skill tracks, called branches, filterable by subtopic, company, tool and difficulty. SQL questions run against sample tables, choice and numeric answers are checked instantly, and written cases are scored against evaluation criteria.
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3 questions
Why peeking inflates false positives
Explain the statistical cost of checking results daily.
Quick check · Readout · 5 min · Easy
Experimentation & A/B Testing · Original Uplift question
Big week-1 lift that fades to zero
A redesigned button shows +8% engagement in week 1, but by week 4 treatment and control are indistinguishable.
Quick check · Readout · 5 min · Easy
Experimentation & A/B Testing · Company-context scenario
Spot a novelty effect in a VR interface test
A new VR interface lifts daily use by 18% in days 1–3, 7% in days 4–7, and 0% in days 8–21.
Quick check · Readout · 7 min · Easy
Experimentation & A/B Testing · Reported at Meta