Estimation question

Estimate the number of iPads sold in Europe in 2019.

Practice this question out loud. An AI interviewer asks it, follows up like a real interviewer would, and scores your answer. Type or speak.

What this question tests

Structured market sizing using top-down and bottom-up reasoning with reasonable assumptions.

Clarify scope: new iPad units sold, not total installed base, across the EU plus UK in 2019.
Top down: estimate Europe's population at roughly 500 million (assumption), and tablet-owning households at some fraction.
Estimate replacement cycle: tablets are typically replaced every 3 to 4 years, giving an annual tablet purchase rate.
Estimate iPad's market share of tablet sales in Europe, likely 30 to 40 percent given Apple's premium positioning versus Android tablets.
Combine: total European tablet sales times iPad share gives the estimate.
Sanity check against a rough figure: landing somewhere in the 8 to 15 million unit range feels plausible for a premium tablet brand in one year across Europe.

States each assumption clearly, population, replacement cycle, and market share, before combining them (assumption).
Shows the multiplication step by step rather than jumping to a final number.
Sanity checks the result against known scale, landing in the single digit millions to low teens of millions, plausible for Europe alone.

Confusing worldwide iPad sales with Europe-only sales.
No stated replacement cycle assumption, making the annual sales estimate ungrounded.
Giving a number with no visible calculation steps.

Chapters of the AI PM course that teach what this question tests.