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Python Institute PCAD-31-02 Exam Syllabus Topics:

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

1. When analyzing a dataset of customer ages, you calculate the mean, median, and mode. What does it indicate if all three values are approximately equal?

A) The dataset has a normal distribution
B) The dataset is positively skewed
C) The dataset is uniformly distributed
D) The dataset contains outliers

2. Which storage system is best suited for storing and retrieving large volumes of unstructured data, such as images or logs?

A) Data cubes
B) Relational databases
C) Object storage systems
D) In-memory databases

3. What object-oriented principle allows a child class to reuse and extend the behavior of a parent class in a Python data modeling scenario?

A) Encapsulation
B) Abstraction
C) Inheritance
D) Composition

4. When performing bootstrapping on a dataset with 500 observations, what is a typical procedure?

A) Generating multiple datasets of the same size by randomly sampling with replacement
B) Scaling all values between 0 and 1 before resampling
C) Creating samples by removing all duplicates
D) Drawing one sample and calculating the mean only once

5. Which of the following practices improves clarity when combining visualizations and textual explanations in a report?

A) Use visualizations alone without titles or captions
B) Avoid summarizing the data verbally
C) Repeat all numerical data in both the chart and text
D) Include concise textual summaries that highlight the chart's message

Solutions: