PCAD-31-02 Demo Test & PCAD-31-02 Detail Explanation

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Python Institute PCAD-31-02 Exam Syllabus Topics:

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

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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions (Q94-Q99):

NEW QUESTION # 94
When creating a line chart with Matplotlib, which function is most appropriate to add a text label at a specific data point?

A. plt.annotate()
B. plt.xlabel()
C. plt.legend()
D. plt.title()

Answer: A

NEW QUESTION # 95
Which of the following best describes the purpose of the plt.subplot() function in Matplotlib?

A. It creates a 3D surface plot using pandas
B. It overlays multiple plots in the same figure without axes
C. It configures multiple plots in a grid layout within a single figure
D. It links Matplotlib with Seaborn's grid styling

Answer: C

NEW QUESTION # 96
Which transformation method adjusts the mean of the dataset to 0 and the standard deviation to 1?

A. Log transformation
B. One-hot encoding
C. Min-max normalization
D. Z-score normalization

Answer: D

NEW QUESTION # 97
Why might using a pie chart to represent category proportions be less effective than a bar chart?

A. Pie charts cannot be created using Seaborn
B. Human perception is less accurate at judging angles than lengths
C. Pie charts display individual data points more clearly
D. Bar charts are limited to one variable only

Answer: B

NEW QUESTION # 98
Which of the following statements best describes the structural relationship between Pandas Series and DataFrames?

A. A DataFrame is a one-dimensional array of Series
B. A Series can only be created from a DataFrame
C. A Series contains multiple DataFrames
D. A DataFrame is a two-dimensional container of Series objects

Answer: D

NEW QUESTION # 99
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