You are compiling a report for user content uploaded every month and notice a spike in uploads in October. In particular, a spike in picture uploads. What might you think is the cause of this, and how would you test it?

You are compiling a report for user content uploaded every month and notice a spike in uploads in October. In particular, a spike in picture uploads. What might you think is the cause of this, and how would you test it?



-Halloween pictures?
-Look at uploads in countries that don't observe Halloween as a sort of counter-factual analysis
-Compare uploads mean in October and uploads means with September: hypothesis testing

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