Q3. “Have you ever imagined the number of birthday or anniversary posts on someone’s wall for a given day?”

Job: Facebook Data Scientist

Leave alone someone else’s wall, have you ever kept track of the number of people posting on your wall on your birthday?

 Well, if not then you better have an idea for the burning question dashed at Facebook Data Scientist candidates- “How many birthday posts occur on Facebook on a given day?”

If you can estimate the count- good for you, else come up with witty answer for a rescue.

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