What is the difference between supervised and unsupervised methods?
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What is selection bias and why does it matter?
What is logistic and linear regression? How do you treat multicollinearity and heteroscedasticity in regression? Name some packages in r and python for building regression models.
What do you understand by the selection bias? What are its various types?
What do you mean by the term linear regression?
What is the best programming language to use in data science?
Please explain recommender systems along with an application?
What is a univariate analysis?
Define an algorithm to discover when a person is starting to search for new job.
What is market basket analysis? How would you do it in r and python?
what is the difference between extrapolation and interpolation?
What is the k-means clustering method?
Explain how to merge data frames in R?