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Python Institute PCAD-31-02 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Visualization and Communication | ||
| Topic 2: SQL and Data Management | ||
| Topic 3: Data Acquisition and Pre-Processing | 29.2% | |
| Topic 4: Statistical Methods and Modeling | ||
| Topic 5: Exploratory Data Analysis |
Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions:
What is the main purpose of defining a class when working with complex data structures in a Python-based analysis project?
- A. To avoid using loops and conditional logic
- B. To ensure all values are stored as plain strings
- C. To define global variables that persist across files
- D. To encapsulate related data and behavior for better organization
Correct Answer: D 🗳️
Which chart types are commonly used to represent relationships between two numerical variables in Python-based visualizations?
(choose two)
Response:
- A. Heatmap
- B. Scatter plot
- C. Histogram
- D. Line chart
Correct Answer: A,B 🗳️
What is the purpose of using the groupby() function in a Pandas DataFrame when analyzing a dataset with multiple categories and numerical values?
- A. To sort the DataFrame by a specific column
- B. To split the data into subgroups for aggregation
- C. To filter rows based on index values
- D. To append new rows to the DataFrame
Correct Answer: B 🗳️
Which of the following are true characteristics of bootstrapping in statistics?
(Choose two)
- A. It enables confidence interval estimation
- B. It uses random sampling with replacement
- C. It requires a large population sample
- D. It assumes a normal distribution
Correct Answer: A,B 🗳️
Which of the following exceptions would most likely be raised if a string is directly converted to an integer in Python?
- A. RuntimeError
- B. IOError
- C. ValueError
- D. TypeError
Correct Answer: C 🗳️
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