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Python Institute PCAD-31-02 Exam Syllabus Topics:

Section	Weight	Objectives
Statistical Methods and Modeling
SQL and Data Management
Data Visualization and Communication
Exploratory Data Analysis
Data Acquisition and Pre-Processing	29.2%

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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions (Q69-Q74):

NEW QUESTION # 69
What distinguishes structured data from unstructured data in the context of data modeling and storage?

A. Unstructured data contains only numeric values
B. Structured data cannot be stored in databases
C. Unstructured data cannot be stored or analyzed
D. Structured data follows a consistent schema or format

Answer: D

NEW QUESTION # 70
Which of the following practices contributes most to making Python scripts modular and maintainable?

A. Hard-coding file paths in every function
B. Structuring code with reusable functions and modules
C. Writing all logic in the global scope
D. Using global variables freely

Answer: B

NEW QUESTION # 71
What is the correct SQL statement to permanently remove a table named customers from a database?

A. DELETE TABLE customers;
B. DROP TABLE customers;
C. TRUNCATE TABLE customers;
D. REMOVE TABLE customers;

Answer: B

NEW QUESTION # 72
Which type of regression is most appropriate when the response variable is categorical, such as predicting customer churn (Yes/No)?

A. Polynomial regression
B. Linear regression
C. Logistic regression
D. Decision tree regression

Answer: C

NEW QUESTION # 73
Which metric is most appropriate for evaluating the accuracy of a classification model?

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

Answer: D

NEW QUESTION # 74
......

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