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Consulting Case Interview Practice Questions

Category - Facts to Know

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What is the average household size in the developed world?
  1. 2.0
  2. 2.3
  3. 2.5
  4. 3.0
  5. 3.3
Explanation
Answer: The average household size in the US is 2.6. In Europe, it is about 2.5. 2.5 will work well for you in questions that require you to calculate a market size or potential by number of households.

Key Takeaway: You can adjust up or down for other markets with this baseline, depending on how fertile you think the country might be. For example, developing world markets tend to have larger household sizes.
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