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Python Institute PCED-30-02 Exam Syllabus Topics:

SectionObjectives
Topic 1: 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
          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 visualization
              • 1. Plot interpretation
                • 2. Matplotlib basics
                  - Data cleaning and preprocessing
                  • 1. Data transformation techniques
                    • 2. Missing values handling
                      Topic 4: Basic Statistics for Data Analysis- Descriptive statistics
                      • 1. Mean, median, mode
                        • 2. Variance and standard deviation

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                          Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions (Q14-Q19):

                          NEW QUESTION # 14
                          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: B

                          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 # 15
                          A program uses slicing on a string "Python". The expression s[1:4] is evaluated. Which substring will be returned?

                          Answer: A

                          Explanation:
                          Slicing includes the start index but excludes the end index. Characters at indices 1, 2, and 3 are selected, producing the substring "yth".


                          NEW QUESTION # 16
                          You are reading a data.csvfile line by line. To prepare each line for formatting with f-strings, you need to remove extra whitespace and split the values by commas.
                          Which line should you insert to correctly clean and parse the input?

                          Answer: B

                          Explanation:
                          Stripping removes leading and trailing whitespace from the line, and then splitting on the comma- space delimiter correctly separates the values into a list for further formatting.


                          NEW QUESTION # 17
                          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?

                          Answer: C

                          Explanation:
                          Slicing creates a new list object rather than modifying the original. The expression lst[::-1] returns a reversed copy, leaving the original list unchanged.


                          NEW QUESTION # 18
                          Which of the following code snippets will output Truefor both printfunctions by correctly identifying the type of each variable and performing valid operations?

                          Answer: B

                          Explanation:
                          Adding an integer and a float produces a float result, so checking that the type of the sum is float evaluates to True. The variable holding 3.0 is a float, so the isinstance check for float also evaluates to True.


                          NEW QUESTION # 19
                          ......

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