利用PCAD-31-02 PDF -不用擔心Python Institute Certified Associate Data Analyst with Python (PCAD-31-02)

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Python Institute PCAD-31-02 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Statistical Methods and Modeling
Topic 2: Data Acquisition and Pre-Processing	29.2%
Topic 3: Data Visualization and Communication
Topic 4: SQL and Data Management
Topic 5: Exploratory Data Analysis

>> PCAD-31-02 PDF <<

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最新的 Python Institute Certification PCAD-31-02 免費考試真題 (Q38-Q43):

問題 #38
You have a list of product prices, and you need to remove duplicate values while maintaining the fastest performance. Which core data structure should you use?

A. list
B. dictionary
C. set
D. tuple

答案：C

問題 #39
Which practices help maintain data integrity across large datasets in Pandas workflows?
(Choose two)

A. Using assertions to enforce domain-specific rules
B. Sorting columns alphabetically
C. Automatically converting all text to uppercase
D. Defining and enforcing schema constraints

答案：A,D

問題 #40
What is the primary reason to use .head() and .tail() methods in pandas when exploring datasets?

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

答案：D

問題 #41
Which actions are valid techniques for handling erroneous categorical values in a dataset?
(Choose two)

A. Normalizing using min-max scaling
B. Removing rows with invalid labels
C. Converting all values to integers
D. Replacing inconsistent labels with a standardized value

答案：B,D

問題 #42
Which of the following are true characteristics of bootstrapping in statistics?
(Choose two)

A. It assumes a normal distribution
B. It uses random sampling with replacement
C. It enables confidence interval estimation
D. It requires a large population sample

答案：B,C

問題 #43
......

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