If a PM says that they want to double the number of ads in Newsfeed, how would you figure out if this is a good idea or not? (Asked in Facebook Interviews)

Data Science Interview Questions › Category: Data Science › If a PM says that they want to double the number of ads in Newsfeed, how would you figure out if this is a good idea or not? (Asked in Facebook Interviews)
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MockInterview Staff asked 6 years ago
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MockInterview Staff answered 6 years ago

Do a A/B testing:

Randomly divide users into two groups (one group without adding more ads), and measure:

Users’ interaction with FB:
    – Passive and active engagement rate
    – Time spent on FB compared with history
    – Comments with friends about more ads (especially complaints on ads)
    – People deactivate FB?

Users’ reactions to ads
    – Click through rate on ads
    – Daily/ weekly/ monthly skips of ads or ignoring of ads
    – Feedbacks on more ads
Source

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