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Datenwissenschaftler Manager Interview Questions

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Data Model: LinkedIn data model - model for 1st degree connection Python: 1. Dedup items in the list - retaining the order of items. ==> cannot use dict/set since order will not be retained. Follow up question on this - How would you handle nested lists? (they are looking for recursion) 2. Find the number of words in a sentence /avg length of word SQL On the product-sales-customers data model that is preloaded in coderpad.io, write the following queries 1. Count of stores in OR state with area_sqft > 25000 2. avg number of Female Customers group by state 3. Customer FirstName, Last Name and count of unqiue products purchased by state followup question - Return the top customer by state based on diverse product purchased (diverse = count(distinct product_id))
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Senior Data Engineering Manager

Interviewed at Meta

3.5★
Aug 26, 2020

Data Model: LinkedIn data model - model for 1st degree connection Python: 1. Dedup items in the list - retaining the order of items. ==> cannot use dict/set since order will not be retained. Follow up question on this - How would you handle nested lists? (they are looking for recursion) 2. Find the number of words in a sentence /avg length of word SQL On the product-sales-customers data model that is preloaded in coderpad.io, write the following queries 1. Count of stores in OR state with area_sqft > 25000 2. avg number of Female Customers group by state 3. Customer FirstName, Last Name and count of unqiue products purchased by state followup question - Return the top customer by state based on diverse product purchased (diverse = count(distinct product_id))

Product questions heavily focused on FB products. How would you measure success of a new product? SQL assignment was to write a query which computes conversion rates for 2 products given the log of users actions with type of action for each product type.
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Data Scientist

Interviewed at Meta

3.5★
Sep 23, 2017

Product questions heavily focused on FB products. How would you measure success of a new product? SQL assignment was to write a query which computes conversion rates for 2 products given the log of users actions with type of action for each product type.

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