Define feature vector?
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Can you define data discretization?
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?
How will you handle missing data ?
What are the differences between data science, machine learning, and artificial intelligence?
What do you understand by the lattice package?
What is a linear regression in data science?
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.
Define cluster sampling?
What do you mean by p-value?
How can you generate a random number between 1 – 7 with only a die?
What does _init_.py do?
What is a C ++ iterator?
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