Interview Q&A / Data Science
Data Science interview questions
Statistics, pandas, cleaning data and exploratory analysis for analyst and data science roles.
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- What is the difference between correlation and causation?
Correlation means two variables move together. Causation means a change in one actually produces a change in the other. Correlation can come from a hidden third factor, from chance, or from cause running the other way, so proving causation usually needs a controlled experiment such as an A/B test.
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