Module 10 Knowledge Check
5 questions. Pass mark 4 out of 5. Answer every question before checking the answer key below, then retry after reading the feedback.
1. Seaborn expects data in…
- A. wide form
- B. long form
- C. either, equally
- D. a numpy array
2. Faceted panels must share axes because otherwise…
- A. the labels overlap
- B. different-sized series look the same
- C. the colours clash
- D. the panels are too small
3. By default, the height of a Seaborn bar is…
- A. the sum
- B. the mean
- C. the median
- D. the maximum
4. A figure returned by Seaborn…
- A. cannot be modified
- B. is an ordinary Matplotlib axes
- C. must be re-created to restyle
- D. uses a separate API
5. The reshape from wide to long form should happen…
- A. in each plotting call
- B. once, near the data load
- C. after plotting
- D. never - Seaborn handles it
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Answer Key and Explanations
Check these only after attempting every question.
1. B - long form
Long form is why one call handles any number of series without the plotting code changing.
2. B - different-sized series look the same
Each panel fills its own space, so a small series and a large one appear identical.
3. B - the mean
And the whisker is a bootstrap confidence interval - neither is stated on the chart.
4. B - is an ordinary Matplotlib axes
Every Module 9 technique applies to it, which is the recommended workflow.
5. B - once, near the data load
Otherwise the same reshape appears in six places with slightly different column names.
Practical Check
Apply this module to your own work: complete the module activity for *Seaborn for Statistical Exploration*, then write one sentence naming what your result shows and one naming what it does not.
Strong Answer Pattern
A strong answer names the task, the evidence used, the check performed, and the remaining limitation. It avoids "proved", "guaranteed", or "always" unless the evidence genuinely supports it.