FirstCry Data Scientist Interview Questions and Answers for Experienced

Simple mediam DSA style questions around ML

Build a simple cat and dog image classifier

Q1. ML related questions
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Q1. Behavioural questions, basically to check if you will be fit in a team
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Questions related to basic coding were asked, and some background on projects and discussions alongside maths and statistics concepts

Q1. Questions related to projects done at my previous company
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Q1. Questions related to my work at previous company
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Q2. ML system design use case type of discussion
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Easy topics arrays, sequence sum.

Q1. Tell me about your projects?
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Q2. How do you approach the project if you are using logistic regression model?
Ans. 
Approach involves data preprocessing, model training, evaluation, and interpretation.
• Perform data preprocessing such as handling missing values, encoding categorical variables, and scaling features.

• Split the data into training and testing sets.

• Train the logistic regression model on the training data.

• Evaluate the model using metrics like accuracy, precision, recall, and F1 score.

• Interpret the model coefficients to under...read more
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Q1. What are you future goals?
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Q2. What would you do if your interested field doesnt have any work in the company?
Ans. 
I would seek opportunities to apply my skills in related fields within the company.
• Explore other departments or teams within the company that may have projects related to my field of interest

• Offer to collaborate with colleagues in different departments to bring a new perspective to their projects

• Seek out professional development opportunities to expand my skills and knowledge in related areas
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Q1. Basic Recommendation System Questions
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Q2. A B Testing Questions
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Q1. Basic SQL questions
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Q1. Guestimates question: How many women's drive red car in the Bangalore
Ans. 
It is impossible to accurately estimate the number of women driving red cars in Bangalore without specific data.
• There is no specific data available on the number of women driving red cars in Bangalore.

• Estimating the number of women driving red cars in Bangalore would require access to vehicle registration data or a survey of car owners.

• Factors such as car ownership trends among women and the popularity of red cars woul
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Q2. How will achieve GMV if your budget is over
Ans. 
Achieve GMV by optimizing marketing channels, improving product offerings, and enhancing user experience.
• Optimize marketing channels to reach a larger audience

• Improve product offerings to increase customer interest and sales

• Enhance user experience to encourage repeat purchases and higher order values
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