3M Data Scientist Interview Questions and Answers

It has behavioural and ability to focus rounds where behavioural have several questions repeated in different forms and answers in different categories. Choose extreme ones, it shows your confidence and clarify

Q1. More about the projects
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Q2. What were the innovative ideas you thought
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Q3. How would you calculate impact of a project
Ans. 
Calculate impact of a project by analyzing key metrics and outcomes.
• Identify key metrics to measure impact such as revenue, cost savings, customer satisfaction, etc.

• Quantify the baseline performance before the project and compare it to the performance after the project.

• Use statistical analysis to determine the significance of the project's impact.

• Consider both short-term and long-term effects of the project.

• Seek feedba...read more
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Some standard test and aptitude test everyone has to take before being shortlisted for itnerview

Q1. Name github commands
Ans. 
GitHub commands are used to interact with repositories on GitHub platform.
• git clone : Clone a repository to your local machine

• git add : Add a file to the staging area

• git commit -m 'commit message': Commit changes to the repository

• git push origin : Push changes to a remote repository

• git pull origin : Pull changes from a remote repository
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Q2. DE questions like how to you deploy
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Basic college level, basic logic based questions and some mathematical questions like speed Avg questions

Q1. Tell me a project you did in school that shows innovation?
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Q1. What is the difference between AI, deep learning and machine learning
Ans. 
AI is the broader concept of machines being able to carry out tasks in a way that we would consider smart. Machine learning is a subset of AI that allows machines to learn from data. Deep learning is a subset of machine learning that uses neural networks with many layers to model and solve complex problems.
• AI is the broader concept of machines being able to carry out tasks in a way that we would consider smart.

• Machine ...read more
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Predictive modeling project

Q1. Explain the project and that related questions only.
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It was a great pleasure to be the part of the Honeywell recruitment process

Q1. They have screened me regarding previous projects
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Q1. Some technical aspects & project discussion & roles to be assigned
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Q1. Regarding organization & Salary packages
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Q1. What time intelligence functions can be used for ytd and qtd analysis
Ans. 
Time intelligence functions like YTD (Year-to-Date) and QTD (Quarter-to-Date) can be used for YTD and QTD analysis in data analytics.
• YTD analysis can be done using functions like YTD() or TOTALYTD() to calculate values from the beginning of the year up to the selected date.

• QTD analysis can be done using functions like QTD() or TOTALQTD() to calculate values from the beginning of the quarter up to the selected date.

• Thes...read more
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Q2. Difference between import and direct query
Ans. 
Import brings data into Power BI for further analysis, while direct query connects to data source in real-time.
• Import: Data is loaded into Power BI for analysis, improving performance but requiring periodic refreshes.

• Direct Query: Connects to data source in real-time, allowing for up-to-date information but potentially slower performance.

• Import is suitable for smaller datasets, while direct query is better for large da
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