Persistence Market Research Interview Questions and Answers

Q1. How will you find loyal customers for a store like DMart , SmartBazar
Ans. 
Utilize customer transaction data and behavior analysis to identify loyal customers for DMart and SmartBazar.
• Use customer transaction history to identify frequent shoppers

• Analyze customer behavior patterns such as repeat purchases and average spend

• Implement loyalty programs to incentivize repeat purchases

• Utilize customer feedback and reviews to gauge loyalty

• Segment customers based on their shopping habits and preferenc
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Q2. Who is more valuable a customer who is making small transactions everyday or the customer who makes big transactions in a month
Ans. 
It depends on the business model and goals of the company.
• Small transactions everyday can lead to consistent revenue streams and customer engagement.

• Big transactions in a month can indicate high purchasing power and potential for larger profits.

• Consider customer lifetime value, retention rates, and overall business strategy when determining value.
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Q3. What will you do as a data scientist if the sales of a store is declining
Ans. 
I would conduct a thorough analysis of the sales data to identify trends and potential causes of the decline.
• Review historical sales data to identify patterns or seasonality

• Conduct customer surveys or interviews to gather feedback

• Analyze competitor data to understand market dynamics

• Implement predictive modeling to forecast future sales

• Collaborate with marketing team to develop targeted strategies
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Q4. We have to bundle the items together in the units of 2-3 as a single units like chips of 3 packets together. how to identify which items to bundle and number of units. Create a machine learning model for i...read more
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Q5. You are working in a project, where your approach towards problem is more innovative while the rest of the team is following conventional approach. how will you convince them to follow your approach.
Ans. 
I would showcase the potential benefits and results of my innovative approach to convince the team.
• Highlight the advantages of the innovative approach such as improved efficiency, accuracy, or cost-effectiveness.

• Provide real-world examples or case studies where similar innovative approaches have led to successful outcomes.

• Encourage open discussion and collaboration within the team to explore the potential of combining ...read more
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1. A store has promotional offers how will you analyse that offers are working in their favour.
2. What data will you require if you want to predict the sales of the chocolate in a store.
3. Why data is distributed normally in linear regression.
4. Difference between linear and logistic regression
5. A person who is senior to you and you are working on the same project. But that person has very bad reputation of misbehaving and being rude to people. And he is doing same with you. What will you do?

It is a test of total 150+ questions in which we have some java pseudocodes ,python ,aptitude reasoning questions as well and english questions.

Q1. Short inteoduction and project discussion.
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Q2. Check the given sentence is palindrome or not by taking input by user.
Ans. 
The program checks if a given sentence is a palindrome or not.
• Prompt the user to input a sentence

• Remove all spaces and punctuation from the sentence

• Reverse the sentence and compare it with the original sentence to check for palindrome
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Q3. Final,Finally,finalize keywords
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Q1. Introduce your self
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Q2. Soft skills and other basic questions
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Aptitude test conducted with normal logical reasoning, verbal ability and quantitative type aptitude problems were asked.

Case study round scheduled with Practice Director:
Started with normal greetings and basic introduction followed by deep dive into the resume and some questions based on what was in my resume. Then started with the case study.
Case : Your client is a totally offline bank ( think of SBI) and wants to undergo a digital transformation (somewhat like HDFC wherein all services are online as well) . How would you create a framework to do so ?

Q1. Estimate the number of viewers who watched 2024 T20 World Cup.
Ans. 
Estimating the number of viewers for the 2024 T20 World Cup.
• Consider past viewership trends for T20 World Cup events.

• Analyze the popularity of cricket in the host country and globally.

• Take into account the impact of digital streaming platforms on viewership.

• Factor in potential growth in viewership due to increased interest in T20 cricket.

• Consult experts in sports broadcasting and market research for insights.
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Q2. Estimate the number of Gyms in Delhi
Ans. 
Estimating the number of Gyms in Delhi based on population density, urbanization, and market demand.
• Consider the population density of Delhi

• Analyze the urbanization level in different areas of Delhi

• Research on the market demand for fitness centers in Delhi

• Consult with local authorities or fitness industry experts for insights

• Use data from online directories or platforms listing Gyms in Delhi
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Q1. It was a cultural fit/HR round taken by the Partner/Managing Partner in the firm. Questions around personality likes/dislikes future goals, MBA aspirations etc were asked
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Q1. What is coalesce
Ans. 
Coalesce is a function used to return the first non-null value in a list of expressions.
• Coalesce function is commonly used in SQL to handle null values.

• It takes multiple arguments and returns the first non-null value.

• Example: COALESCE(column1, column2, 'default') will return the value of column1 if not null, else column2, and if both are null, it will return 'default'.
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Q2. What is repartition
Ans. 
Repartition is the process of redistributing data across partitions in a distributed system.
• Repartitioning helps in balancing the workload and improving performance in distributed computing environments.

• It involves moving data between partitions based on certain criteria such as key values or hash functions.

• Repartitioning can be done in Spark using operations like repartition() or coalesce().
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Q1. Non repeatable character
Ans. 
A non repeatable character is a character that appears only once in a given string.
• Iterate through the string and count the frequency of each character

• Identify the characters that have a frequency of 1

• Return the first non repeatable character found
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Q2. Sort list without sort method
Ans. 
Sort list without using sort method
• Create a custom sorting function using loops

• Compare each element with every other element to determine the correct order

• Swap elements based on the comparison results
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Q1. Tell me about yourself
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Q2. What are your strengths
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