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Python Institute PCED-30-02 Exam Syllabus Topics:

SectionObjectives
Topic 1: 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
          Topic 2: Python Programming Fundamentals- Basic syntax and data types
          • 1. Variables and operators
            • 2. Control flow basics
              Topic 3: Data Analysis and Visualization- Data cleaning and preprocessing
              • 1. Data transformation techniques
                • 2. Missing values handling
                  - Data visualization
                  • 1. Matplotlib basics
                    • 2. Plot interpretation
                      Topic 4: Basic Statistics for Data Analysis- Descriptive statistics
                      • 1. Variance and standard deviation
                        • 2. Mean, median, mode

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                          Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions (Q18-Q23):

                          NEW QUESTION # 18
                          A loop includes a break statement when a condition is met. The programmer wants to understand how break affects loop execution. What happens when break is executed inside the loop?

                          Answer: D

                          Explanation:
                          The break statement immediately terminates the loop, regardless of remaining iterations. Control is transferred to the first statement following the loop block.


                          NEW QUESTION # 19
                          Consider the following Python code:

                          What will be printed when the code above is executed?
                          40

                          Answer: A

                          Explanation:
                          The last element of the original list is 50. The slice from index 1 up to (but not including) index 4 is
                          [20, 30, 40]. After removing 30 and appending 60, the list contains one occurrence of 10, and integer division by 10 produces [1, 2, 4, 5, 6].


                          NEW QUESTION # 20
                          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?

                          Answer: B

                          Explanation:
                          The range starts at 5 and decreases by 2 each step until it reaches a value greater than 0. The generated sequence is 5, 3, and 1.


                          NEW QUESTION # 21
                          You are working with city names entered by users. These names may contain inconsistent capitalization and unwanted spaces.
                          To standardize the data, you want to:
                          - Remove any leading or trailing whitespace, and
                          - Capitalize the first letter of each word (e.g., convert "new york" to "New York").
                          For example:
                          " New york " → "New York"
                          "lOS ANGELES" → "Los Angeles"
                          You are given a variable citythat contains the raw input.
                          Which line of code correctly updates the value of cleaned_cityto apply the required transformation? Select the best answer.

                          Answer: B

                          Explanation:
                          Stripping removes leading and trailing whitespace, and applying title formatting capitalizes the first letter of each word while converting the remaining letters to lowercase, producing the correctly standardized city name.


                          NEW QUESTION # 22
                          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: F

                          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 # 23
                          ......

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