2 Which stage focuses on presenting findings? A Data cleaning B Data visualization C Data collection D Data storage
3 What is data visualization? A Storing data in files B Representing data in graphical form C Deleting unwanted data D Writing algorithms
4 Which step converts raw data into useful information? A Data cleaning B Data analysis C Data storage D Data collection
5 Which visualization helps identify relationships between variables? A Pie chart B Bar chart C Scatter plot D Table
7 Which stage uses charts and graphs? A Data cleaning B Data visualization C Data collection D Data storage
8 What is Data Science mainly about? A Getting knowledge and insights from data. B Creating computer hardware. C Designing websites. D Writing computer programs only.
9 Data that has been collected but has not been processed or cleaned is called: A Final Data B Clean Data C Useful Data D Raw Data
10 Which stage of the Data Science Life Cycle involves presenting the findings to others? A Data Acquisition. B Data Preparation. C Model Building. D Communication.
11 Why is data visualization important? A It increases storage size B It makes data easier to understand C It deletes duplicate data D It hides information
12 Which of the following is a common way to visually represent data? A Writing a long paragraph. B Creating a bar chart. C Recording an audio file. D Sending a text message.
13 Which step helps stakeholders understand results easily? A Data visualization B Data collection C Data cleaning D Data storage
14 Which chart is best for showing parts of a whole, like the percentage of students who like different fruits? A Line chart B Scatter plot C Flowchart D Pie chart
15 Which of the following is a data visualization tool? A Spreadsheet charts B Compiler C Antivirus D Text editor
16 Which of the following is an example of data? A Student marks list B Final report C Decision D Conclusion
17 What is the main benefit of data science? A Increased typing speed B Better decision making C More storage usage D Hardware improvement
18 Which field combines statistics, programming, and domain knowledge? A Networking B Web development C Data science D Cyber security
19 Why is data cleaning necessary? A To add errors B To improve data quality C To increase file size D To slow processing
20 What is the final stage of the data science life cycle where the results are shared with others? A Data Acquisition B Data Preparation C Communication / Visualization D Asking a question
22 What helps users quickly grasp complex data? A Raw tables B Long text C Data visualization D Manual calculations
23 Which skill is essential for a data scientist? A Drawing skills B Statistical analysis C Hardware repair D Typing speed
24 Which data science step comes just before decision making? A Data visualization B Data collection C Data cleaning D Data storage
25 Which of the following best defines data? A Processed information B Unorganized facts and figures C Final reports D Computer programs
26 In which stage of the data science life cycle are models built to find patterns? A Data Analysis B Data Collection C Problem Definition D Data Deletion
27 The process of removing errors and inconsistencies from data is called? A Data Cleaning. B Data Collection. C Data Modeling. D Data Visualization.
28 Which of the following is not a stage of data science life cycle? A Data collection B Data cleaning C Hardware installation D Data analysis
29 Which visualization is best for comparing percentages? A Pie chart B Line chart C Scatter plot D Histogram
30 Which stage involves interpreting results? A Data collection B Data cleaning C Data analysis D Data storage
31 What is the first stage of the data science life cycle? A Data visualization B Data collection C Model deployment D Data cleaning
32 What is the main goal of data analysis? A To design hardware B To find patterns and insights C To type documents D To send emails
33 What is meant by data analysis? A Collecting data B Storing data C Examining data to draw conclusions D Deleting data
34 Which software is commonly used for basic data visualization? A Spreadsheet software B Operating system C Antivirus software D Compiler
35 Which of the following is the first step in the Data Science Life Cycle? A Building a model. B Collecting data. C Visualizing data. D Cleaning data.
36 What kind of chart uses dots to show data points? A Bar chart B Line chart C Scatter plot D Pie chart
37 A chart that shows data as a circle divided into slices is called a...? A Line graph. B Bar chart. C Pie chart. D Flowchart.
38 What is often the first step in the Data Science Life Cycle? A Data Acquisition (getting the data). B Building a website for the data. C Selling the final results. D Presenting the conclusion.
39 What is the main role of a data scientist? A To repair computer hardware. B To design computer motherboards. C To analyze data and find useful insights. D To manage the school's computer lab.
40 What is Data Science? A The art of drawing pictures on a computer. B The process of building computer hardware. C The study of data to find useful information and patterns. D The process of creating animations and games.