What is the importance of having a selection bias?
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What is the difference between kmeans clustering and hierarchical clustering?
What does the future hold for data scientists?
You are at a Casino. You have two dices to play with. You win $10 every time you roll a 5. If you play till you win and then stop, what is the expected pay-out?
Why do you need a for loop? How do you do for loops in python and r?
What is the 80/20 rule?
A test has a true positive rate of 100% and false positive rate of 5%. There is a population with a 1/1000 rate of having the condition the test identifies. Considering a positive test, what is the probability of having that condition?
How will you overcome overfitting in predictive models?
Explain recommender system?
Define a sql query? What is the difference between select and update query?
Differentiate between univariate, bivariate and multivariate analysis?
How can I become a data scientist?
Explain the difference between data science, machine learning and artificial intelligence?
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