What is random forests and how is it different from decision trees?
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What is k-means?
What is a jupyter notebook?
What are limitations of DBSCAN?
What is the aim of a/b testing?
Define the term cross-validation
Why do you need a for loop? How do you do for loops in python and r?
How often should an algorithm be updated?
What is data science with example?
What do you understand by the job description of data scientist?
Write the formula to calculate r-square?
What is the difference between “long” and “wide” format data?
How do you take millions of users with 100's of transactions each, amongst 10000's of products and group the users together in a meaningful segments?