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Top Data Scientist Data Analysis Interview Questions

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Asked at Meta (Facebook) • 6 months ago
Imagine you're a data scientist at Meta. There's been a sudden 10% drop in Facebook's daily post views. How would you investigate?
Data Scientist
Data Analysis
3 answers I was asked this
"Define: How is daily post view calculated Isolate Issues: Data issue Time period Geo IOS vs Android vs Web Correlated Metrics in the funnel DAU Time spent/ scrolls Engagement - likes, comments External factors Competitor actions Big events Internal factors Product launch Feature change"
Steve Y. - "Define: How is daily post view calculated Isolate Issues: Data issue Time period Geo IOS vs Android vs Web Correlated Metrics in the funnel DAU Time spent/ scrolls Engagement - likes, comments External factors Competitor actions Big events Internal factors Product launch Feature change"See full answer
Data Scientist
Data Analysis
Asked at Meta (Facebook) • 6 months ago
Imagine you are a data scientist for Instagram. How would you balance ads and follower posts and how would you monitor its effectiveness.
Data Scientist
Data Analysis
1 answer I was asked this
"Product Understanding - Ads are what you see from companies as stories, posts, reels. Post are from users (connections). We have to design an experience which produces maximum engagement while generating ad revenue. Clarifying Questions - Is it specific to posts/stories/reels ? Is there an existing post to ads ratio or do we have to start from scratch? Is it specific to a device/OS? Is it specific to a region/user demographic? Assumption - Existing posts to ads ratio"
Vishal S. - "Product Understanding - Ads are what you see from companies as stories, posts, reels. Post are from users (connections). We have to design an experience which produces maximum engagement while generating ad revenue. Clarifying Questions - Is it specific to posts/stories/reels ? Is there an existing post to ads ratio or do we have to start from scratch? Is it specific to a device/OS? Is it specific to a region/user demographic? Assumption - Existing posts to ads ratio"See full answer
Data Scientist
Data Analysis
Asked at Meta (Facebook) • 7 months ago
How would you determine if Facebook Messenger should introduce group calling?
Data Scientist
Data Analysis
1 answer I was asked this
"Clarifying Questions and possible responses: both audio and video goals: increase engagement time among groups/communitites and not require another platform to do group call (be one-stop for communication) region-TBD ios/android only available to users in a group to call users within the group who can intitiate these calls?- only admin? or anyone? metrics:NSM: feature engagement (C), number of calls made in a week per user (C). PM: % of people joining the call in a group"
theproductguy - "Clarifying Questions and possible responses: both audio and video goals: increase engagement time among groups/communitites and not require another platform to do group call (be one-stop for communication) region-TBD ios/android only available to users in a group to call users within the group who can intitiate these calls?- only admin? or anyone? metrics:NSM: feature engagement (C), number of calls made in a week per user (C). PM: % of people joining the call in a group"See full answer
Data Scientist
Data Analysis
Asked at Netflix • 6 months ago
Imagine you are a data scientist for Netflix. How would you use data to decide whether a TV series is worth renewing?
Data Scientist
Data Analysis
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Data Scientist
Data Analysis
Asked at Stripe • 3 years ago
How can Stripe use data to predict the optimal time to retry a transaction?
Data Scientist
Data Analysis
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