Foundit Data Scientist Interview Questions and Answers

Q1. What is clt in statistics
Ans. 
CLT stands for Central Limit Theorem in statistics.
• CLT states that the sampling distribution of the sample mean approaches a normal distribution as the sample size increases.

• It is a fundamental concept in statistics and is used to make inferences about population parameters.

• CLT is important in hypothesis testing, confidence intervals, and regression analysis.

• For example, if you take multiple samples of the same size fr...read more
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Q2. Explain about transformer architecture
Ans. 
Transformer architecture is a type of neural network architecture commonly used in natural language processing tasks.
• Consists of encoder and decoder layers

• Self-attention mechanism allows for capturing long-range dependencies

• Introduced in the paper 'Attention is All You Need' by Vaswani et al.

• Used in models like BERT, GPT-3, and Transformer-XL
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Q1. Explain about the recent projects that you've done
Ans. 
I have recently worked on a project analyzing customer behavior using machine learning algorithms.
• Utilized clustering algorithms to segment customers based on their purchasing behavior

• Implemented predictive models to forecast customer churn and recommend personalized marketing strategies

• Performed feature engineering to extract meaningful insights from customer data
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Q2. Given a scenario to set up a rag system how would you do it?
Ans. 
Setting up a RAG system involves defining criteria for red, amber, and green statuses to track progress or performance.
• Define clear criteria for red, amber, and green statuses based on key metrics or thresholds.

• Establish a method for regularly monitoring and updating the status of each item or project.

• Communicate the RAG system and its criteria to all stakeholders to ensure understanding and consistency.

• Use visual indi...read more
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You've assigned a task to develop a project. How would you do it?