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Python Institute PCAD-31-02 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Python Programming for Data Analysis | 30% | - Control Flow and Functions
|
| Working with Data Using Python Libraries | 30% | - Data Visualization
|
| Data Analysis Fundamentals | 20% | - Introduction to Data Analysis
|
| Applied Data Analysis Projects | 20% | - Exploratory Data Analysis (EDA)
|
Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions:
1. What is a key advantage of using the Parquet file format over CSV in large-scale data pipelines?
A) Parquet supports schema evolution and columnar storage
B) Parquet offers row-based compression
C) Parquet files can only be used with Excel
D) Parquet stores data in plain text, making it human-readable
2. Which approaches are commonly used to extract structured data from APIs in Python?
(Choose two)
A) Use the requests module to retrieve JSON responses
B) Load CSV directly with re.compile()
C) Open Excel files using matplotlib
D) Access data using requests.get() and parse it with .json()
3. What does a Pearson correlation coefficient value of -0.9 imply about the relationship between two numerical variables?
A) A weak positive relationship
B) No correlation
C) A moderate non-linear association
D) A strong negative linear relationship
4. In a scatter plot showing the relationship between advertising spend and sales revenue, the points form a tight upward-sloping pattern. What conclusion can be drawn?
A) The data shows no apparent relationship
B) Advertising has no effect on sales
C) The correlation is weak and likely negative
D) There is a strong positive correlation
5. What is the main purpose of using the bootstrapping technique in inferential statistics?
A) To estimate the sampling distribution by resampling with replacement
B) To increase the number of features in a model
C) To filter outliers from a dataset
D) To validate the syntax of SQL queries in Python
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A,D | Question # 3 Answer: D | Question # 4 Answer: D | Question # 5 Answer: A |
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