PCAD-31-02 exam dumps and Python Institute PCAD-31-02 exam Simulator

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Python Institute PCAD-31-02 Exam Syllabus Topics:

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

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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions (Q51-Q56):

NEW QUESTION # 51
Which refinements are typically used to enhance clarity and presentation quality in visualizations?
(Choose two)

A. Customizing tick labels
B. Adding descriptive axis labels
C. Avoiding color entirely
D. Disabling grid lines in all cases

Answer: A,B

NEW QUESTION # 52
Which type of regression is most appropriate when the response variable is categorical, such as predicting customer churn (Yes/No)?

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

Answer: D

NEW QUESTION # 53
Which of the following would best validate the uniqueness of a primary key in a Pandas DataFrame?

A. df['id'].isnull().sum()
B. df['id'].duplicated().any()
C. df['id'].nunique()
D. df['id'].fillna()

Answer: B

NEW QUESTION # 54
When working with relational databases in Python, what are key components required to establish and manage database connections?
(Choose all that apply)

A. Python's random module for generating keys
B. Database driver or module (e.g., sqlite3)
C. Cursor object for executing queries
D. Connection object to interface with the database

Answer: B,D

NEW QUESTION # 55
Which operations are valid when working with Pandas Series?
(Choose two)

A. Arithmetic vector operations
B. Applying NumPy universal functions
C. Merging by index using merge()
D. Using .columns to rename

Answer: A,B

NEW QUESTION # 56
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