3 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.
4 What is the final stage of the data science life cycle? A Data collection B Data cleaning C Decision making or deployment D Data visualization
5 What helps users quickly grasp complex data? A Raw tables B Long text C Data visualization D Manual calculations
6 Which stage involves interpreting results? A Data collection B Data cleaning C Data analysis D Data storage
7 A map showing the population in different cities of a country is an example of: A Data Visualization. B A text document. C A computer program. D A spreadsheet formula.
9 Which stage focuses on presenting findings? A Data cleaning B Data visualization C Data collection D Data storage
10 Which visualization is best for showing frequency distribution? A Histogram B Pie chart C Line chart D Map
11 What does 'data' mean in the context of data science? A Only pictures and videos. B A collection of facts, such as numbers, words, or measurements. C Only the software on a computer. D The physical parts of a computer like the mouse and keyboard.
12 Which data type is based on categories like colors or names? A Quantitative B Numerical C Qualitative D Statistical
13 Which chart is commonly used to compare categories? A Line chart B Bar chart C Scatter plot D Histogram
14 What type of data is represented using numbers? A Qualitative data B Quantitative data C Text data D Image data
15 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.
16 What is the first stage of the data science life cycle? A Data visualization B Data collection C Model deployment D Data cleaning
17 Why is data cleaning necessary? A To add errors B To improve data quality C To increase file size D To slow processing
18 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
19 Which of the following best defines data? A Processed information B Unorganized facts and figures C Final reports D Computer programs
20 Which field combines statistics, programming, and domain knowledge? A Networking B Web development C Data science D Cyber security
21 Which life cycle stage checks data accuracy? A Data collection B Data cleaning C Data visualization D Decision making
22 Which skill is essential for a data scientist? A Drawing skills B Statistical analysis C Hardware repair D Typing speed
23 Which step helps stakeholders understand results easily? A Data visualization B Data collection C Data cleaning D Data storage
24 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
25 Which stage involves removing errors and inconsistencies from data? A Data collection B Data cleaning C Data visualization D Data storage