Help w preparing for market sizing/estimation case questions interview

How would you solve these two questions: 1. How many movies were downloaded last year? 2. How many Uber drivers were there last year?

And, in general, what is your approach to solving these type questions if I see one I have not practiced. Thanks in advance!

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Help w preparing for market sizing/estimation case questions interview

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Help w preparing for market sizing/estimation case questions interview

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