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Python Institute PCED-30-02 Exam Syllabus Topics:

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

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                          Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions (Q15-Q20):

                          NEW QUESTION # 15
                          A program uses while False: followed by print statements inside the loop. The developer expects output. What will actually happen during execution?

                          Answer: A

                          Explanation:
                          The condition False is evaluated before entering the loop. Since it is always false, the loop body is never executed, and no output is produced.


                          NEW QUESTION # 16
                          A loop is designed using range(1, 6, 2) to iterate through numbers. The developer wants to know exactly which values will be generated during execution. Which sequence correctly represents the values produced?

                          Answer: A

                          Explanation:
                          The range(start, stop, step) function generates numbers starting from 1, increasing by 2, and stopping before 6. Therefore, the resulting sequence is 1, 3, and 5.


                          NEW QUESTION # 17
                          A programmer writes a script to test operator precedence using the expression 3 + 4 * 2 ** 2. The goal is to evaluate the result correctly based on Python's operator hierarchy rules. What result should the script produce?

                          Answer: A

                          Explanation:
                          Exponentiation is evaluated first, so 2 ** 2 equals 4. Then multiplication 4 * 4 equals 16. Finally, addition is performed: 3 + 16 results in 19.


                          NEW QUESTION # 18
                          A variable is assigned using chained assignment: a = b = c = 10. The developer then changes b =
                          5. What will be the value of a after this operation?

                          Answer: A

                          Explanation:
                          Integers are immutable in Python. Reassigning b to a new value does not affect a or c, which still reference the original integer value 10.


                          NEW QUESTION # 19
                          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.

                          Answer: A

                          Explanation:
                          The first summary uses precise statistical language and quantitative detail appropriate for data scientists. The third summary uses simpler, more conversational language that is easier for 12- year-olds to understand.


                          NEW QUESTION # 20
                          ......

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