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Python Institute PCED-30-02 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Python Basics for Data Analysis32.5%- Introduction to NumPy
  • 1. Arrays, basic operations, indexing, slicing
- Control flow and functions
  • 1. Defining and calling functions, parameters, return values
  • 2. Conditional statements, loops, iteration
  • 3. Basic exception handling
- Built-in modules for data work
  • 1. math, statistics, datetime, collections, csv
- Core Python syntax and data types
  • 1. Variables, numbers, strings, booleans
  • 2. Lists, tuples, sets, dictionaries
Topic 2: Data Visualization and Communication20%- Creating basic visualizations
  • 1. Line charts, bar charts, histograms, pie charts
  • 2. Using text and simple plotting tools
- Principles of effective data visualization
  • 1. Choosing appropriate chart types
  • 2. Clarity, simplicity, and accuracy
- Interpreting and presenting results
  • 1. Deriving conclusions and insights
  • 2. Reporting findings clearly and concisely
Topic 3: Working with Data and Performing Simple Analysis25%- Data cleaning and preparation
  • 1. Filtering, sorting, transforming data
  • 2. Formatting and standardizing values
  • 3. Handling missing values, duplicates, and errors
- Data aggregation and grouping
  • 1. Summarizing and grouping datasets
- Data acquisition and loading
  • 1. Reading text, CSV, and structured files
  • 2. Importing data from external sources
- Exploratory data analysis
  • 1. Identifying patterns, trends, and outliers
  • 2. Calculating mean, median, mode, range, variance, standard deviation
Topic 4: Introduction to Data and Data Analysis Concepts22.5%- Data lifecycle and ethical considerations
  • 1. Data collection, storage, processing, usage, and sharing
  • 2. Privacy, security, bias, and fairness in data
- Basic statistical concepts
  • 1. Population, sample, variable, observation
  • 2. Descriptive vs inferential statistics
- Definition and classification of data
  • 1. Process of turning raw data into insights
  • 2. Role of data in decision-making and business
  • 3. Difference between data, information, and knowledge
- Data types and measurement scales
  • 1. Qualitative vs quantitative data
  • 2. Nominal, ordinal, interval, ratio scales

Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions:

You are creating a presentation slide to communicate findings about student stress levels across four categories over a six-month period. You include the following line graph in your presentation:

Your goal is to help your audience clearly understand trends in stress levels over time.
What is the highest problem with this visual presentation? Select the best answer.

  • A. The font used in the chart is hard to read; using larger, uppercase text would improve clarity.
  • B. The chart should be in 3D format to show depth and highlight differences more clearly.
  • C. The lines are too light and similar in color, making it difficult to distinguish between trends.
  • D. The graph doesn't explain what each stress level means or show exact values for each month, which limits interpretation.
  • E. The months should be replaced with week numbers to provide more detailed insight.
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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A Python script evaluates the expression len(" "). The programmer assumes it might be zero because it looks empty. What will the actual result be?

  • A. Error
  • B. 1
  • C. 0
  • D. None
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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Given the following string:
text = "Report2024Final"
Which of the following statements are entirely correct? (Choose two.)

  • A. text[6:8].isdigit()returns True, and text.endswith("Final")returns True
  • B. text[-6].isdigit() returns True, text.startswith("r") returns True
  • C. text.isalpha()returns True, and text.find ("2024")returns True
  • D. text.capitalize()changes Finalto lowercase, and text.find ("L")returns True
  • E. text.capitalize()changes Report2024Finalto REPORT2024FINAL, and text.find("2024")returns 6
  • F. text[0:6].isalpha() returns True, and text.find("2024") returns 6
Reveal Solution  Discussion  0

Correct Answer: A,D,F  🗳️

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A Python loop uses range(5, 0, -2) to iterate backward. The programmer expects a decreasing sequence. Which values will actually be generated when this loop runs?

  • A. 5, 4, 3, 2, 1
  • B. 4, 2, 0
  • C. 5, 3
  • D. 5, 3, 1
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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A list is reversed using slicing: lst[::-1]. The programmer wants to confirm whether this modifies the original list or creates a new one. What is the correct behavior?

  • A. Error
  • B. Creates new list
  • C. Modifies original
  • D. Returns None
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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