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Python Institute PCAD-31-02 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Analysis Fundamentals | 20% | - Data Collection and Preparation
|
| Topic 2: Python Programming for Data Analysis | 30% | - Control Flow and Functions
|
| Topic 3: Applied Data Analysis Projects | 20% | - Exploratory Data Analysis (EDA)
|
| Topic 4: Working with Data Using Python Libraries | 30% | - Pandas Library
|
Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions:
Which actions are considered best practices when managing datasets in Python using pandas?
(Choose two)
- A. Replace missing values with hardcoded zeros without analysis
- B. Use .info() to understand dataset structure
- C. Always convert all columns to strings
- D. Use .describe() for summary statistics
Correct Answer: B,D 🗳️
Which statements correctly describe differences between linear and logistic regression?
(Choose two)
- A. Logistic regression outputs probabilities, while linear regression predicts continuous values
- B. Linear regression applies only to classification tasks
- C. Logistic regression uses the logit function to model relationships
- D. Linear regression requires target variables to be binary
Correct Answer: A,C 🗳️
What is the most appropriate way to ensure that a column used as a foreign key contains only valid references to a parent DataFrame in Pandas?
- A. Use df.merge() with how='outer'
- B. Use df.dropna() on the foreign key column
- C. Use df.sort_values() to sort both columns before merging
- D. Use .isin() to compare the foreign key column against the parent key column
Correct Answer: D 🗳️
What is the main purpose of validating a dataset before applying statistical analysis?
- A. To visualize patterns more clearly
- B. To ensure the dataset meets expected quality and structure
- C. To sort the data alphabetically
- D. To generate more columns from the dataset
Correct Answer: B 🗳️
What is the main purpose of defining a class when working with complex data structures in a Python-based analysis project?
- A. To encapsulate related data and behavior for better organization
- B. To ensure all values are stored as plain strings
- C. To define global variables that persist across files
- D. To avoid using loops and conditional logic
Correct Answer: A 🗳️
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