When an interviewer offers up a question about the company, this is an opportunity to show your research into their work and how you align with them. Consider how your analysis skills can bring insights specific to this company in particular, with their problems and goals in mind. 10. How...
Question Bank Access 500+ interview questions with solutions we have in our database, including real take-home exercises companies use in interviews. Interview IDE Work on practice questions directly from our in-browser code editor. Adaptive Content ...
Overcoming Overfitting with the reusable holdout: Preserving validity in adaptive data analysis 11 Clever Methods of Overfitting and how to avoid them Tag: Overfitting Q12. Give an example of how you would use experimental design to answer a question about user behavior. Answer by Bhavya Ge...
Data scientist roles at ByteDance can range from basic data analytics methods, such as data analysis, hypothesis testing, A/B testing, experimentation, data visualization, and presentation, etc., to more advanced machine learning and deep learning techniques such as regression, classifications, ...
BA Interview Question & Answer Rank Scores Write a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the next ranking number should be the next consecutive integer value. In other words, there should be no "holes...
Regression analysis Additionally, machine learning (ML) Data mining Statistical methods Database warehouse Also, Database querying Machine learning and data mining Conclusion These include some of the most commonly asked big data interview questions by interviewers while shortlisting big data candidates. ...
DSInterview Question & Answer Why data cleaning plays a vital role in analysis? Cleaning data from multiple sources to transform it into a format that data analysts or data scientists can work with is a cumbersome process because - as the number of data sources increases, the time take to cl...
DS Interview Question & Answer During analysis, how do you treat missing values? Should we even treat missing values is another important point to consider? If 80% of the values for a variable are missing then you may drop the variable instead of treating the missing values. ...
Solution of SQL Interview Question #2 The solution SQL query is: SELECT COUNT(*) FROM(SELECT user_id, COUNT(event_date_time) AS image_countFROM event_logGROUP BY user_id) AS image_per_userWHERE image_count < 2000 AND image_count > 1000; ...
During analysis, how do you treat missing values? BA Interview Question Write a query in SQL to find the name of the patients who taken an advanced appointment, and also display their physicians and medication. LeetCode...