実際的なPCED-30-02|権威のあるPCED-30-02日本語版復習資料試験|試験の準備方法PCED - Certified Entry-Level Data Analyst with Pythonソフトウエア

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Python Institute PCED-30-02 Exam Syllabus Topics:

SectionObjectives
Topic 1: Python Programming Fundamentals- Basic syntax and data types
  • 1. Variables and operators
    • 2. Control flow basics
      Topic 2: Basic Statistics for Data Analysis- Descriptive statistics
      • 1. Mean, median, mode
        • 2. Variance and standard deviation
          Topic 3: Data Handling and Processing with Python- Data manipulation libraries
          • 1. NumPy basics
            • 2. Pandas fundamentals
              - Working with data structures
              • 1. Iterating and transformations
                • 2. Lists, tuples, dictionaries
                  Topic 4: Data Analysis and Visualization- Data cleaning and preprocessing
                  • 1. Missing values handling
                    • 2. Data transformation techniques
                      - Data visualization
                      • 1. Matplotlib basics
                        • 2. Plot interpretation

                          >> PCED-30-02日本語版復習資料 <<

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                          Python Institute PCED - Certified Entry-Level Data Analyst with Python 認定 PCED-30-02 試験問題 (Q22-Q27):

                          質問 # 22
                          A teacher wants to compare the number of students in different school clubs:

                          Which type of chart would be most appropriate to show this comparison? Select the best answer.

                          正解:B

                          解説:
                          A bar chart is best for comparing quantities across distinct categories, such as the number of students in each club, because it clearly shows differences in counts side by side.


                          質問 # 23
                          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?

                          正解:D

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


                          質問 # 24
                          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?

                          正解:C

                          解説:
                          The not operator has higher precedence than and, so not False becomes True first. Then True and True is evaluated, resulting in True as the final Boolean value.


                          質問 # 25
                          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.

                          正解:B

                          解説:
                          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.


                          質問 # 26
                          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?

                          正解:D

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


                          質問 # 27
                          ......

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                          PCED-30-02ソフトウエア: https://www.topexam.jp/PCED-30-02_shiken.html