QBE Data Scientist Interview Questions and Answers

If else conditions, data merging, datetime conversions, EDA on a sample data set, duplicates removal and missing value imputation

Q1. If you have to sell a kids account, how will you Target the customer. What features will you build?
Ans. 
To target customers for a kids account, focus on features like parental controls, educational content, and interactive games.
• Implement parental controls to assure parents of child safety online.

• Include educational content to attract parents looking for learning opportunities.

• Incorporate interactive games to engage children and make the account more appealing.

• Offer rewards or incentives for completing educational activi...read more
Answered by AI
Add your answer

Q1. About Machine learning basics, activation functions linear regression, cnn, all basics..
Add your answer
Q2. About project questions, about sdlc basic 3 questions
Add your answer
Q3. About Why not used another model for training?
Ans. 
Choosing the right model depends on data characteristics, problem complexity, and performance metrics.
• Model performance: Some models may outperform others based on metrics like accuracy, precision, or recall. For example, Random Forest may perform better than Logistic Regression on complex datasets.

• Data characteristics: The nature of the data (e.g., linear vs. non-linear relationships) influences model choice. For inst...read more
Answered by AI
Add your answer

Q1. Bias vs variance
Ans. 
Bias refers to error due to overly simplistic assumptions, while variance refers to error due to excessive complexity in the model.
• Bias is the error introduced by approximating a real-world problem with a simplified model. Example: A linear model for a non-linear relationship.

• Variance is the error introduced by the model's sensitivity to small fluctuations in the training data. Example: A complex model that fits noise.

• ...read more
Answered by AI
Add your answer
Q2. Banking domain questions
Add your answer

Java script, angular js, node questions

Q1. Asked about Company and why do you choose genpact?
Add your answer
Q2. Questions on my projects and college experience
Add your answer

DS related Case study and discussion

Python code example test where they will ask basic python or sql questions.