Estimation question

Estimate how many Zoom meetings take place over the course of the average week.

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

Estimation combining workforce data with behavioral assumptions about remote work meeting frequency.

Clarify scope: global Zoom meetings across both business and personal use in an average week.
Estimate the addressable base: knowledge workers globally who regularly use video conferencing, roughly 500 million to 1 billion (assumption).
Estimate Zoom's share of that base versus competitors like Teams and Google Meet, say roughly 20 to 30 percent given its strong position (assumption).
Estimate meeting frequency: an average active user attends roughly 3 to 5 meetings per week.
Multiply: roughly 150 to 300 million users times about 4 meetings equals somewhere around 600 million to over a billion meetings weekly.
State the final range and flag it as highly sensitive to the market share assumption.

Breaks the estimate into addressable base, market share, and frequency as three distinct assumptions, each stated clearly (assumption).
Shows the multiplication explicitly rather than asserting a final number.
Flags which assumption the estimate is most sensitive to, market share, showing awareness of estimate fragility.

Treating all video conferencing users as Zoom users with no market share adjustment.
No meeting frequency assumption stated before multiplying.
Giving a single overly precise number instead of a defensible range.

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