100% Pass Quiz Python Institute PCED-30-02 Latest Reliable Source

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Python Institute PCED-30-02 Exam Syllabus Topics:

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

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                          Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions (Q25-Q30):

                          NEW QUESTION # 25
                          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.

                          Answer: D

                          Explanation:
                          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.


                          NEW QUESTION # 26
                          You are given two lists representing daily page views and sign-ups on a website:
                          views = [120, 130, 128, 700, 115, 123, 119, 680, 122]
                          signups = [12, 15, 13, 50, 11, 14, 10, 55, 13]
                          You want to:
                          - remove outliers (views > 600), and
                          - calculate correlation between the cleaned lists.
                          Which code accomplishes this correctly? Select the best answer.

                          Answer: B

                          Explanation:
                          It converts the lists to NumPy arrays, builds a boolean mask based on the views threshold to remove outliers, applies the same mask to both arrays so they stay aligned, and then computes the correlation on the cleaned pairs using np.corrcoef.


                          NEW QUESTION # 27
                          A financial technology company is reviewing its data practices to ensure legal and ethical compliance.
                          Which of the following actions would support responsible data handling and align with regulations like GDPR, HIPAA, and CCPA? (Choose two.)

                          Answer: C,E

                          Explanation:
                          Encrypting stored and transmitted data protects sensitive information from unauthorized access and supports regulatory requirements for data security. Providing clear explanations of data usage and obtaining explicit consent ensures transparency and aligns with core principles of data protection regulations such as lawful processing and user rights.


                          NEW QUESTION # 28
                          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: C

                          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 # 29
                          A health researcher uses wearable devices to record physical activity and sends a survey to randomly selected participants across age groups.
                          Why can this approach be effective? Select the best answer.

                          Answer: A

                          Explanation:
                          Combining automated wearable data with a randomly selected survey sample integrates objective measurements with representative participant input, which helps reduce bias and improves the reliability and generalizability of the findings.


                          NEW QUESTION # 30
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