Python InstitutePCAD - Certified Associate in Data Analytics with Python
Domain 4Objective 1
Data Analysis with Pandas and NumPy PCAD-31 Practice Questions (Page 3)
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 26 practice questions to prepare you well beyond it. (estimate)
26questions here
6free pages
12concepts
18.8%of the exam
Questions 11–15
- 11
Which of the following is a two-dimensional labeled data structure in Pandas?
Select an answer first - 12
Which of the following best describes the key difference between a NumPy array and a Pandas Series?
Select an answer first - 13
Which Pandas method is used to transform a DataFrame from a wide format (where each variable is a column) to a long format (where variables are stacked into rows)?
Select an answer first - 14
After using df.groupby('category'), which method would you use to count the number of rows in each group?
Select an answer first - 15
Which Pandas method is specifically designed to remove rows or columns that contain missing values from a DataFrame?
Select an answer first
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