Data Visualization MCQs
This section focuses on "Data Visualization" in Data Science. These Data Visualization Multiple Choice Questions (MCQ) should be practiced to improve the Data Science skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations.
1. What is true about Data Visualization?
A. Data Visualization is used to communicate information clearly and efficiently to users by the usage of information graphics such as tables and charts.
B. Data Visualization helps users in analyzing a large amount of data in a simpler way.
C. Data Visualization makes complex data more accessible, understandable, and usable.
D. All of the above
View Answer
Ans : D
Explanation: Data Visualization is used to communicate information clearly and efficiently to users by the usage of information graphics such as tables and charts. It helps users in analyzing a large amount of data in a simpler way. It makes complex data more accessible, understandable, and usable.
2. Data can be visualized using?
A. graphs
B. charts
C. maps
D. All of the above
View Answer
Ans : D
Explanation: Data visualization is a graphical representation of quantitative information and data by using visual elements like graphs, charts, and maps.
3. Data visualization is also an element of the broader _____________.
A. deliver presentation architecture
B. data presentation architecture
C. dataset presentation architecture
D. data process architecture
View Answer
Ans : B
Explanation: Data visualization is also an element of the broader data presentation architecture (DPA) discipline, which aims to identify, locate, manipulate, format and deliver data in the most efficient way possible.
4. Which method shows hierarchical data in a nested format?
A. Treemaps
B. Scatter plots
C. Population pyramids
D. Area charts
View Answer
Ans : A
Explanation: Treemaps are best used when multiple categories are present, and the goal is to compare different parts of a whole.
5. Which is used to inference for 1 proportion using normal approx?
A. fisher.test()
B. chisq.test()
C. Lm.test()
D. prop.test()
View Answer
Ans : D
Explanation: prop.test() is used to inference for 1 proportion using normal approx.
6. Which is used to find the factor congruence coefficients?
A. factor.mosaicplot
B. factor.xyplot
C. factor.congruence
D. factor.cumsum
View Answer
Ans : C
Explanation: factor.congruence is used to find the factor congruence coefficients.
7. Which of the following is tool for checking normality?
A. qqline()
B. qline()
C. anova()
D. lm()
View Answer
Ans : A
Explanation: qqnorm is another tool for checking normality.
8. Which of the following is false?
A. data visualization include the ability to absorb information quickly
B. Data visualization is another form of visual art
C. Data visualization decrease the insights and take solwer decisions
D. None Of the above
View Answer
Ans : C
Explanation: Data visualization decrease the insights andtake solwer decisions is false statement.
9. Common use cases for data visualization include?
A. Politics
B. Sales and marketing
C. Healthcare
D. All of the above
View Answer
Ans : D
Explanation: All option are Common use cases for data visualization.
10. Which of the following plots are often used for checking randomness in time series?
A. Autocausation
B. Autorank
C. Autocorrelation
D. None of the above
View Answer
Ans : C
Explanation: If the time series is random, such autocorrelations should be near zero for any and all time-lag separations.
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