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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions:

1. Which of the following best describes the purpose of the plt.subplot() function in Matplotlib?

A) It creates a 3D surface plot using pandas
B) It overlays multiple plots in the same figure without axes
C) It configures multiple plots in a grid layout within a single figure
D) It links Matplotlib with Seaborn's grid styling

2. What is a major challenge in aggregating data from multiple sources?
Response:

A) Excessive disk space usage
B) Overfitting in predictive models
C) Duplicate records and format inconsistencies
D) Increased algorithmic complexity

3. Which Pandas methods are commonly used to extract central tendency and dispersion insights from a DataFrame?
(Choose two)

A) pivot_table()
B) median()
C) var()
D) sort_values()

4. What is the primary purpose of using a requirements.txt file in Python-based data projects?

A) To automatically compress source code for deployment
B) To track script runtime dependencies during execution
C) To store the current working directory of Python modules
D) To list the packages and versions required for consistent environment setup

5. What distinguishes structured data from unstructured data in the context of data modeling and storage?

A) Unstructured data cannot be stored or analyzed
B) Structured data cannot be stored in databases
C) Unstructured data contains only numeric values
D) Structured data follows a consistent schema or format

Solutions: