What is cluster sampling in data science?
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List out the libraries in python used for data analysis and scientific computations?
How would churn help predict and control churn for a customer?
What is data science?
How does data cleaning plays a vital role in analysis?
How will you prove that the square root of 2 is irrational?
Define a sql query? What is the difference between select and update query? How do you use sql in sas, python, r languages?
What is the difference between a bagged model and a boosted model?
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 does sas stand out to be the best over other data analytics tools?
What is an outlier? How do you treat outlier data?
while working on a data set, how can you select important variables? Explain
Different between overfitting and underfitting?