Why is it mandatory to clean a data set?
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Which language is best for data science?
Explain p-value?
What is meant by lattice graphs?
Can you cite some examples where a false positive is important than a false negative?
How do you treat colinearity?
You are given two tables- friend_request and request_accepted. Friend_request contains requester_id, time and sent_to_id and request_accepted table contains time, acceptor_id and requestor_id. How will you determine the overall acceptance rate of requests?
Estimate the number of square feet pizza's eaten in US each year.
How do you understand by bias variance trade off?
What do you mean by cluster sampling and systematic sampling?
You created a predictive model of a quantitative outcome variable using multiple regressions. What are the steps you would follow to validate the model?
What is a recommender system?
What is the k-means clustering method?
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