MathCo Data Science Associate Interview Questions and Answers

Q1. Last company job description
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Q1. They will only check your attitude.
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Q2. Simple question like tell me about yourself, experiences education etc
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Q1. They will tell you the JD and ask you similar questions.
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Q1. They will simply ask about yourself and nothing
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Q1. They asked about projects
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Q2. They asked about projects and data analytics
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Q1. It was a basic introduction with HR
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Q1. 2nd round was with Operation Head basically he wanted to know that are you comfortable with shifts and long office hours without and expectations.
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Q1. Direction will ask you some basic questions and congrats you are good to go
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SQL Test
3 questions for Solution using SQL queries.

Q1. SQL queries using window function
Ans. 
Window functions in SQL are used to perform calculations across a set of table rows related to the current row.
• Window functions are used to calculate values based on a specific subset of rows within a table.

• They are commonly used with aggregate functions like SUM, AVG, and COUNT.

• Examples of window functions include ROW_NUMBER(), RANK(), and NTILE().
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Q2. Resume questions
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Q3. Past experience
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Q4. KPI that you have created
Ans. 
I created a KPI to measure customer retention rate.
• Developed formula to calculate percentage of customers retained over a specific period

• Monitored customer churn rate to track effectiveness of retention strategies

• Analyzed customer feedback and behavior to identify factors influencing retention

• Implemented initiatives to improve customer retention based on data insights
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Basic quants test had to attend.

Round 1 Aptitude Test. They Ask Total 24 questions There are Aptitude and Verbal, One Codding question related To Sql Joins.