Explain how to merge the files into a single dataframe?


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Differentiate between skewed and uniform distribution?

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What is the advantage of performing dimensionality reduction before fitting an svm?

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How is data modeling different from database design?

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Explain box cox transformation?

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How is random forests different from decision trees?

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Differentiate between univariate, bivariate and multivariate analysis?

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What are eigenvectors and eigenvalues?

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How would you say data science is similar or different to business analytics and business intelligence?

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Which one you prefer R or Python for text analytics?

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What is the aim of a/b testing?

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What is advantage of using apply family of functions in r?

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What are numpy, scipy, and spark essential datatypes?

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