What exactly does a data scientist do?


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More Data Science Interview Questions

What are the differences between data science, machine learning, and artificial intelligence?

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Define linear regression?

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What data structures are available in the Pandas package in Python programming language?

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What is linear optimization?

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A jar has 1000 coins, of which 999 are fair and 1 is double headed. Pick a coin at random, and toss it 10 times. Given that you see 10 heads, what is the probability that the next toss of that coin is also a head?

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How to check the frequency distribution of a categorical variable?

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How do you build a custom function in python or r?

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What is cart and chaid? How is bagging different from boosting?

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What is the 80/20 rule? Explain its importance in model validation?

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What is the difference between “long” and “wide” format data?

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What is skewed distribution & uniform distribution?

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How do you treat outlier data?

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