Estimation question

How would you estimate how many people are watching Youtube in India right now?

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What this question tests

Estimation using population and behavioral assumptions for a real time, geographically specific number.

How to approach it

  1. Anchor on India's internet using population, roughly 800 million people with regular internet access.
  2. Assume a fraction watch YouTube regularly, say 60 percent, giving roughly 480 million monthly YouTube users in India.
  3. Estimate the share active at a given moment, factoring in time of day, say 5 percent are watching right now.
  4. Multiply: 480 million times 5 percent gives roughly 24 million concurrent viewers.
  5. Adjust for time of day, since 'right now' should be treated as a typical peak evening hour.
  6. State the final estimate as a range, for example 15 to 25 million, given the uncertainty in each assumption.

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