Explain the difference between correlation and causation with a software example.
Tests whether you distinguish association from causation to avoid blaming production issues. A strong answer defines both concepts, names a confounding variable, and gives a software example with a common cause. Red flag: claiming correlation is causation.
Tests whether you can separate statistical association from causal mechanism when debugging production systems. A strong answer first defines correlation as co-occurrence without directional influence and causation as a change in one variable directly producing change in another. It then names a confounder and gives a concrete software example such as CPU and memory both spiking because of a traffic surge rather than one metric driving the other. Red flag: asserting that correlation alone justifies changing one metric to fix the other.
Read the original → Wikipedia: Correlation does not imply causation
- #correlation
- #causation
- #metrics
- #observability
- #interview
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