Python InstitutePCAD - Certified Associate in Data Analytics with Python
Domain 4Objective 2
Statistical Methods and Machine Learning PCAD-31 Practice Questions (Page 2)
Part of the Data Analysis and Modeling domain, which accounts for 18.8% of the PCAD-31 exam. Python Institute does not publish an official question count, but from its 60-minute exam (~25–40 total, ~5–5 in this domain), expect 3–3 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)
30questions here
6free pages
9concepts
18.8%of the exam
Questions 6–10
- 6
Which scikit-learn function is commonly used to split a dataset into training and test sets?
Select an answer first - 7
A medical diagnostic model is being evaluated. The cost of a false negative (missing a disease) is much higher than a false positive. Which metric should be prioritized?
Select an answer first - 8
Which measure of central tendency is most affected by extreme outliers in a dataset?
Select an answer first - 9
What is the final step in a model evaluation workflow after computing metrics?
Select an answer first - 10
A data analyst wants to visually compare the distribution of test scores across three different classes. Which plot is most appropriate?
Select an answer first
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