BCG Data Scientist Interview Questions and Answers

Q1. Write a prompt to extract key Personal Identifiable Information given a resume
Ans. 
Extracting key Personal Identifiable Information from a resume prompt
• Look for information such as full name, address, phone number, email address, date of birth, and social security number

• Utilize natural language processing techniques to identify patterns and structures in the text

• Consider using regular expressions to match specific formats of personal information

• Ensure data privacy and security measures are in place w
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Simple Data Science Case Study

Q1. Python knowledge related questions
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Data Science Case Study

Q1. ML, DL, Data Science, Python
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Q1. AI,ML, Data Science, Use cases
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Basic math and coding questions

Q1. SQL queries on joins, cte and window functions
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Q2. Python questions
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Q3. A/B testing using example
Ans. 
A/B testing is a method used to compare two versions of a webpage or app to determine which one performs better.
• Randomly assign users to two groups: A (control) and B (test)

• Expose group A to the current version and group B to the new version

• Measure key metrics (e.g. conversion rate) for both groups

• Analyse the results to determine which version performs better
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Q4. ML based projects discussion and questions on decision trees
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Q1. Project discussion in detail
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Q1. Notice period, date of joining, documents
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