PCAD-31-02 PDF Questions & Test PCAD-31-02 Cram

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Python Institute PCAD-31-02 Exam Syllabus Topics:

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

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Test Python Institute PCAD-31-02 Cram - Valid PCAD-31-02 Test Questions

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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions (Q145-Q150):

NEW QUESTION # 145
Which features of object-oriented patterns improve clarity and reusability in Python analysis workflows?
(Choose all that apply)

A. Encapsulating behavior in class methods
B. Using global variables instead of object properties
C. Applying inheritance to avoid redundant code
D. Replacing all functions with lambda expressions

Answer: A,C

NEW QUESTION # 146
Which actions are considered part of basic data validation tasks in Python using Pandas?
(Choose two)

A. Sorting the data frame by index
B. Checking for duplicate rows
C. Replacing NULL values with placeholders
D. Confirming numeric columns contain only integers

Answer: B,D

NEW QUESTION # 147
What is the primary reason to use .head() and .tail() methods in pandas when exploring datasets?

A. To preview the first and last few rows of data
B. To delete missing values
C. To rename columns
D. To create visualizations

Answer: A

NEW QUESTION # 148
Which type of regression is most appropriate when the response variable is categorical, such as predicting customer churn (Yes/No)?

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

Answer: D

NEW QUESTION # 149
What is the main reason to remove duplicate records before performing analysis?

A. It reduces redundancy that can skew statistical metrics
B. It helps increase sample size
C. It avoids converting data to JSON format
D. It ensures training data is intentionally overfitted

Answer: A

NEW QUESTION # 150
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