What exactly does a data scientist do?
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What are the differences between data science, machine learning, and artificial intelligence?
Define linear regression?
What data structures are available in the Pandas package in Python programming language?
What is linear optimization?
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?
How to check the frequency distribution of a categorical variable?
How do you build a custom function in python or r?
What is cart and chaid? How is bagging different from boosting?
What is the 80/20 rule? Explain its importance in model validation?
What is the difference between “long” and “wide” format data?
What is skewed distribution & uniform distribution?
How do you treat outlier data?