Mu Sigma Trainee Decision Scientist Interview Questions, Process, and Tips

MuApt test was conducted where few logical, numerical questions were asked

Q1. This was a HR cum technical round. They asked all tech questions on python, machine learning. In HR round they asked about strengths, weaknesses and family background.
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Q2. Data structure related questions
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Q3. Back propagation in neural network
Ans. 
Back propagation is a supervised learning algorithm used to train neural networks.
• It is used to adjust the weights of the neural network to minimize the error between the predicted output and the actual output.

• It involves propagating the error backwards from the output layer to the input layer, and adjusting the weights accordingly.

• It uses the chain rule of calculus to calculate the gradient of the error with respect t...read more
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It was 1 Hour Test, Total of 35 questions were there

30 questions included -- Logical, seating arrangement, profit and loss, sequence, 1 SQL question(distinct fn), the output of array, etc

5 questions named Algorithm concept
a) round table seating arrangement - need to write a program

Q1. 1. Prepare for programming language questions
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Q2. 2. Learn Python, sql, ML
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The first round had Aptitude questions from Quants, Logical and Verbal

The GD was pretty easy you just have to be confident and talk more. We were divided into batches and my batch had 9 people. You will be given a topic to discuss on and who share the best points will be selected for the next round.

Q1. This was my final round. The Personal Interview round. I was asked to tell me about myself, My hobbies, and basic technical questions related to DBMS, SQL and Python and then a HR question
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Q2. Why is Power BI and Tableau used for?
Ans. 
Power BI and Tableau are used for data visualization and business intelligence purposes.
• They help in creating interactive dashboards and reports.

• They allow users to analyze and explore data in a visual format.

• They can connect to various data sources and transform data for analysis.

• They provide features like data filtering, sorting, and aggregation.

• They enable users to share insights and collaborate with others.

• Example:...read more
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Q3. What are the methods used to store and analyze data before the existence of tools such as Excel
Ans. 
Before Excel, data was stored and analyzed using manual methods.
• Data was stored in physical files such as paper documents or index cards.

• Analysis was done manually using tools such as calculators or statistical tables.

• Data was often organized using charts or graphs.

• Data entry was done by hand, which was time-consuming and prone to errors.
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In first round you’ll have a muAPT test by DoSelect. There consists questions from Aptitude, Reasoning, Python, SQL and English.

The second round is GD, you’ll get simple topics. The main thing is you need to speak, do not interrupt others while speaking and no offensive language.

Q1. Self Introduction
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Q2. Final Year project
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Q3. Logical questions
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Q4. Your hobbies which you mentioned
Ans. 
My hobbies include reading, hiking, and playing the piano.
• I enjoy reading a variety of genres, from fiction to non-fiction.

• Hiking allows me to explore nature and stay active.

• Playing the piano is a creative outlet for me and helps me relax.
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Q5. Basic Python and SQL
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