PCED-30-02완벽한시험덤프 - PCED-30-02인기시험덤프

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Python Institute PCED-30-02 Exam Syllabus Topics:

SectionObjectives
Python Programming Fundamentals- Basic syntax and data types
  • 1. Variables and operators
    • 2. Control flow basics
      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
              Basic Statistics for Data Analysis- Descriptive statistics
              • 1. Variance and standard deviation
                • 2. Mean, median, mode
                  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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                          최신 Python Institute PCED PCED-30-02 무료샘플문제 (Q44-Q49):

                          질문 # 44
                          You are given a short Python script that uses both arithmetic and assignment operators. The variable x is initialized as 4, then updated using x *= 2 + 3. What will be printed when the final value of x is displayed?

                          정답：A

                          설명：
                          Python evaluates the addition first because of operator precedence. The expression 2 + 3 equals
                          5, then x *= 5 multiplies the current value of x (4) by 5, resulting in a final value of 20.


                          질문 # 45
                          Consider the following Python code:

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

                          정답：A

                          설명：
                          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].


                          질문 # 46
                          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?

                          정답：A


                          질문 # 47
                          An online retailer collects customer reviews, order transaction logs, and product ratings.
                          Which of the following correctly classifies these types of data? Select the best answer.

                          정답：A

                          설명：
                          Product ratings are numeric values stored in fixed fields, making them quantitative and structured.
                          Customer reviews are free-text responses, which are qualitative and unstructured. Transaction logs consist of organized records with defined fields such as order ID, date, and amount, making them structured and quantitative.


                          질문 # 48
                          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.

                          정답：B

                          설명：
                          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.


                          질문 # 49
                          ......

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