How do you treat outlier data?
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How will you find the second largest element in a Binary Search tree ?
Define a sql query? What is the difference between select and update query? How do you use sql in sas, python, r languages?
How would churn help predict and control churn for a customer?
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Treating a categorical variable as a continuous variable would result in a better predictive model?
Why is data munging useful?
What is the 80/20 rule? Explain its importance in model validation?
Explain how to merge data frames in R?