Daten Interview Questions

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Originally asked: If the ratio of green to red is 2 to 7 and there are 70 total marbles, how many green are there? Amended question after email: If the ratio of green to red is 2 to 7 and there are 70 red marbles, how many green are there?
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Data Analyst

Interviewed at Capital One

Nov 8, 2016

Originally asked: If the ratio of green to red is 2 to 7 and there are 70 total marbles, how many green are there? Amended question after email: If the ratio of green to red is 2 to 7 and there are 70 red marbles, how many green are there?

Given two tables with the following columns: USERS user id date time stamp post id user action action details POST_REMOVED_BY_REVIEWER post id date time stamp report the daily ratio of posts removed by reviewers out of the user reported posts (user action = report)
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Data Scientist

Interviewed at Meta

3.6
Apr 18, 2020

Given two tables with the following columns: USERS user id date time stamp post id user action action details POST_REMOVED_BY_REVIEWER post id date time stamp report the daily ratio of posts removed by reviewers out of the user reported posts (user action = report)

Describe different JOINs in SQL. Having a categorical variable with thousands distinct values, how would you encode it? How to find linear trends in time series. How to find the flow in a matrix showing temperature. ...
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Data Scientist

Interviewed at Amazon

3.5
Nov 27, 2019

Describe different JOINs in SQL. Having a categorical variable with thousands distinct values, how would you encode it? How to find linear trends in time series. How to find the flow in a matrix showing temperature. ...

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