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

1. Which metric is most appropriate for evaluating the accuracy of a classification model?

A) Precision
B) R-squared
C) Confusion matrix
D) Mean squared error

2. Which Python control structures are commonly used for data filtering and iterative operations in real-world analytics tasks?
(Choose two)

A) list comprehensions
B) match-case statements
C) while loops
D) decorators

3. What is the primary purpose of using annotations in a data visualization?

A) To highlight important data points and provide contextual information
B) To ensure faster rendering in large datasets
C) To replace the need for axes
D) To enhance interactivity in static plots

4. Which of the following best describes the use of relational databases in analytics?

A) Used only for image processing
B) Suitable for managing tabular structured data
C) Cannot enforce schema
D) Best for real-time log ingestion

5. Which element is essential to justify a conclusion drawn from a dataset?

A) File format of the source data
B) Logical reasoning and supported metrics
C) The use of color in plots
D) The origin of the dataset

Solutions: