Check your understanding of this module before moving on.
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Checkpoint quiz 3 questions
A quick check on this module's key ideas before you move on
Question 01
What is the correct order of the three-stage EDA process taught in this lesson?
B is correct. Check each column alone first, then relationships between columns, and only then how columns relate to the target, the order that catches the most problems earliest.
Question 02
Why is a feature that correlates almost perfectly with the target a reason for suspicion, not celebration?
B is correct. A suspiciously predictive feature is exactly the red flag the data leakage lesson covers in depth: it might be encoding the answer rather than predicting it.
Question 03
What does Stage 1 (univariate) check that the later stages don't?
B is correct. Univariate analysis looks at one column at a time, before any comparison to other columns or the target even begins.