Python Institute PCED - Certified Entry-Level Data Analyst with Python : PCED-30-02

Exam Code: PCED-30-02

Exam Name: PCED - Certified Entry-Level Data Analyst with Python

Updated: Aug 28, 2026

Q & A: 52 Questions and Answers

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Python Institute PCED-30-02 Exam Syllabus Topics:

SectionObjectives
Data Analysis and Visualization- Data visualization
  • 1. Plot interpretation
    • 2. Matplotlib basics
      - Data cleaning and preprocessing
      • 1. Missing values handling
        • 2. Data transformation techniques
          Basic Statistics for Data Analysis- Descriptive statistics
          • 1. Variance and standard deviation
            • 2. Mean, median, mode
              Python Programming Fundamentals- Basic syntax and data types
              • 1. Control flow basics
                • 2. Variables and operators
                  Data Handling and Processing with Python- Working with data structures
                  • 1. Lists, tuples, dictionaries
                    • 2. Iterating and transformations
                      - Data manipulation libraries
                      • 1. Pandas fundamentals
                        • 2. NumPy basics

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

                          Question 1

                          A Python script includes the expression not False and True. The developer is unsure how logical operators are evaluated in terms of precedence. What will be the final Boolean result of this expression?

                          A. False
                          B. None
                          C. Error
                          D. True


                          Question 2

                          An e-commerce site records every product view and purchase.
                          Which of the following best describes how these logs become marketing insights?

                          A. Raw event logs are stored, archived, and indexed - like by user ID and session - which then facilitate audit trails.
                          B. Raw event logs are filtered, aggregated, and formatted into summaries - like total visits per category - which then provide traffic reports.
                          C. Raw event logs are validated, organized, and compiled into datasets - like timestamped user actions - which then support system debugging.
                          D. Raw event logs are structured, analyzed, and interpreted into information - like conversion rates by product - which then builds knowledge of customer preferences.


                          Question 3

                          Below are six possible summaries for your presentation:
                          - Summary 1: "The data revealed a moderate positive correlation between age and recycling frequency. While 72% of students reported recycling paper regularly, only 39% reported recycling plastic."
                          - Summary 2: "Analysis showed notable differences in recycling habits by material type, with paper being most recycled and plastic least recycled."
                          - Summary 3: "Older kids recycled more than younger ones. Paper was the most recycled item- plastic got forgotten a lot."
                          - Summary 4: "Student responses showed positive environmental habits overall, though participation varied by waste type."
                          - Summary 5: "A lot of students said they recycle. Some didn't answer every question, so we couldn't figure out everything."
                          - Summary 6: "We asked more than 300 students about recycling. Most said they recycle paper, but way fewer recycle plastic." Which communication style is the best fit for Group A (data scientists) and Group B (12-year- olds), respectively? Select the best answer.

                          A. Summary 6 for Group A, Summary 5 for Group B
                          B. Summary 4 for Group A, Summary 3 for Group B
                          C. Summary 1 for Group A, Summary 6 for Group B
                          D. Summary 6 for Group A, Summary 3 for Group B
                          E. Summary 2 for Group A. Summary 6 for Group B
                          F. Summary 1 for Group A, Summary 3 for Group B


                          Question 4

                          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, 1
                          D. 5, 3


                          Question 5

                          A student writes a program using input() to collect user data, then tries to add 5 to the input value without conversion. The program crashes. What is the most likely cause of this behavior?

                          A. input returns string
                          B. input returns int
                          C. Syntax error
                          D. input returns float


                          Solutions:

                          Question 1
                          Answer: D
                          Question 2
                          Answer: D
                          Question 3
                          Answer: F
                          Question 4
                          Answer: C
                          Question 5
                          Answer: A

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