Affine Interview Questions

Company – Affine AnalyticsLocation – BangalorePosition – Senior Business AnalystExperience – 3+ yearsCompensation – Best in the industry Affine Analytics Interview Questions

This was it Amazon Interview Questions Sapient Interview Questions Full interview question of these round is present in our book What do they ask in Top Data Science Interview Part 2: Amazon, Accenture, Sapient, Deloitte, and BookMyShow You can get your hand on our ebooks, we also have a 10 e-book bundle offer at Rs.549 where you get a total of 1400 questions. Comment below or mail at [email protected] for more information

How many rows will be there if we do the following 1. Left Join 2. Right Join 3. Inner Join Answer: 3. A quick guesstimate on number of Iphones sold in India per year Hint in the below link – What is a RANK() function? How is it different from ROW_NUMBER()? How to fetch only even rows from a table? Link to Question 4 and 5 – What are the measures of Central Tendency The telephonic round went for around 1 hour:-Introduction – 10 minutesProject – 30 minutesQuestions – 20 minutes I was shortlisted for the further rounds. All together the face-to-face interviews were divided into 3 roundsRound 1 – SQL and R/PythonRound 2 – Statistics Round 3 – Case Study and HR questionsRound 1 There were ~20 questions on SQL and some questions on Language. Below are the questions which I remember:- 1. Optimising a SQL code 2. Doing a sum on a column with Null values Hint – Use Coalesce 3. How to find the count of duplicate rows? 4. Use of Lag function Link – 5. Life cycle of a project 6. How to find the second minimum salary? 7. How to get 3 Min salaries? 8. DDL, DML, and DCL commands There were few more questions on Joins and optimising inner query codes. Overall difficulty level- 8/10 There were 5 questions on Python/R – Loading a csv/text file Writing code of Linear Regression (As it was mentioned on my resume)Doing a right join in either of the languageRemoving null value from a column 3 – StatisticsHow to calculate IQR?What is positive skewness and negative skewness? are the two types of regression?What is multiple linear regression?What is Logistic Regression?What is p-value and give an example? These questions were discussed in detail and I power the explanation with real life examples. Bonus tips – Do look for good examplesRound 4 – Case Study and HR QuestionsHow many laptops are sold in Bangalore in a Day ? Case Study – There is a mobile company which is very popular in Other Asian countries. The company is planning to open it’s branch in the most popular mall of Bangalore. What should be the strategy of the company? How can you use freely available data to plan the marketing of the campaigns? How can you use Digital marketing to create campaigns for the company? These questions were followed by:- Why do you want to change the company? How is the work in your current organisation? I got the confirmation in 2 working days.

Number of Rounds – 4 I received a call from the Technical HR who scheduled the telephonic round for the next dayRound 1 – Telephonic Round (Mostly SQL and Project) I was asked to introduce myself and then the discussion went towards my recent project at Mu Sigma. We had a good discussion on Regression Techniques, a bit on statistics. The project description was followed by few questions on SQL (the answers to these questions are present in various articles on the website, links are at the end of the interview)1. What is the order of SQL query execution? 2. You have two tables with one column each. The table A has 5 values and all the values are 1 i.e. 1,1,1,1,1 and Table B has 3 values and all the values are 1 i.e. 1,1,1.

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