PCED-30-02최신시험예상문제모음덤프로시험패스하기

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Python Institute PCED-30-02 Exam Syllabus Topics:

Section	Objectives
Topic 1: Python Programming Fundamentals	- Basic syntax and data types 1. Control flow basics 2. Variables and operators
Topic 2: Basic Statistics for Data Analysis	- Descriptive statistics 1. Variance and standard deviation 2. Mean, median, mode
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: Data Handling and Processing with Python	- Working with data structures 1. Lists, tuples, dictionaries 2. Iterating and transformations - Data manipulation libraries 1. NumPy basics 2. Pandas fundamentals

>> PCED-30-02최신 시험 예상문제모음 <<

PCED-30-02인증덤프공부문제 & PCED-30-02최신 업데이트 덤프문제

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최신 Python Institute PCED PCED-30-02 무료샘플문제 (Q24-Q29):

질문 # 24
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.

A. Bar chart
B. Bubble chart
C. Pie chart
D. Line chart

정답：A

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 # 25
You are given the following list of daily step counts:
steps = [8230, 9020, 7640, 8760, 10020, 2546, 9817]
Your task is to calculate:
- the standard deviation of the step counts,
- the average rounded up to the nearest whole number, and
- the median of the step counts.
Which code snippet correctly performs all three tasks? Select the best answer.
import statistics

A. import math
print(statistics.variance(steps))
print(math.ceil(sum(steps) / len(steps)))
print(math.floor(statistics.median(steps)))
import statistics
B. import math
print(statistics.stdev(steps))
print(round(math.mean(steps)))
print(math.median(steps))
import statistics
C. import math
print(math.stdev(steps))
print(statistics.mean(steps))
print(statistics.median(steps))
import statistics
D. import math
print(statistics.stdev(steps))
print(math.ceil(statistics.mean(steps)))
print(statistics.median(steps))

정답：D

설명：
It uses statistics.stdev() to compute the standard deviation, statistics.mean() to compute the average and math.ceil() to round it up to the nearest whole number, and statistics.median() to compute the median.

질문 # 26
The following chart shows how a student spends 24 hours in a day:

Which statements are most accurate? (Choose two.)

A. Leisure and meals combined equal the time spent at school.
B. Commuting is the second most time-consuming activity.
C. School and homework together take up half of the day's time.
D. Leisure accounts for a moderate portion of the student's daily schedule, larger than commuting but smaller than the time spent at school.
E. More time is spent commuting than on leisure.
F. Sleep and school take up the majority of time in a day.

정답：D,F

설명：
The largest portions of the chart are sleep and school, and together they clearly make up more than half of the day. Leisure appears as a mid-sized segment that is larger than commuting but smaller than school, fitting the description of a moderate portion.

질문 # 27
A list is defined as [1, 2, 3]. The programmer uses the method .append([4, 5]). What will the resulting list look like after execution?

A. Error
B. [1,2,3,[4,5]]
C. [4,5,1,2,3]
D. [1,2,3,4,5]

정답：B

설명：
The append() method adds its argument as a single element. Therefore, the list [4, 5] is added as one nested list, resulting in [1, 2, 3, [4, 5]].

질문 # 28
A data analyst exports a cleaned dataset from Python and wants to share it with a colleague for easy use in Excel.
Which file format is best suited for this purpose? Select the best answer.

A. XML, because it automatically preserves spreadsheet formatting and charts.
B. SQL, because it directly converts tabular data into database tables that Excel can open.
C. CSV, because it stores tabular data in plain text and is compatible with spreadsheet applications.
D. JSON, because it stores hierarchical data and is designed for visual presentation in Excel.

정답：C

설명：
CSV stores tabular data in a simple plain-text, comma-separated format that is widely supported by spreadsheet applications like Excel, making it ideal for sharing datasets for easy import and analysis.

질문 # 29
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PCED-30-02인증덤프공부문제: https://www.itdumpskr.com/PCED-30-02-exam.html