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Published on: 22/01/2020
Data Visualization Using Pyplot: Line Chart, Pie Chart and Bar Chart
Download Tamil Nadu 12th Standard Computer Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
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Take MCQ Computer Science Test

1.
What are the two ways to display data in the form of diagram?
2.
What is pip?
3.
Write note or Box plot.
4.
Define scatter plot.
5.
What is matplotlib?
6.
What is Dashboard?
7.
What is Infographics data visualization?
8.
Write the difference between the following functions: plt.plot([1,2,3,4]), plt.plot([1,2,3,4], [1,4,9,16]).
9.
10.
List the types of Visualizations in Matplotlib.
11.
List the general types of data visualization.
12.
What is Data Visualization?
1.
Bar Graph and Histogram are the two ways to display data in the form of a diagram.
2.
Matplotlib installed using pip. Pip is a management software for installing python packages.
3.
Box plot: The box plot is a standardized way of displaying the distribution of data based on the five number summary: minimum, first quartile, median, third quartile, and maximum.
4.
Scatter plot: A scatter plot is a type of plot that shows the data as a collection of points. The position of a point depends on its two dimensional value, where each value is a position on either the horizontal or vertical dimension.
5.
Matplotlib is the most popular data visualization library in Python. It allows to create charts in few lines of code.
6.
Dashboard → A dashboard is a collection of resources assembled to create a single unified visual display. Data visualizations and dashboards translate complex ideas and concepts into a simple visual format. Patterns and relationships that are undetectable in text are detectable at a glance using dashboard.
7.
Infographics → An infographic (information graphic) is the representation of information in a graphic format.
8.
| plt.plot ([I,2,3,4]) | plt.pIot ([I,2,3,4], [1,4,9,16]) |
|---|---|
| 1. It refers y values as [1,2, 3,4] | 1. It refers x and y values as ([1, 2, 3, 4], [1,4,9, 16]) |
| 2. Indirectly it refers x values as [0, 1, 2, 3] (0,1),(1,2), 2,3), (3,4) | 2. Directly given in the function (1,1), (2,4), (3,9), (4,16) |
9.
10.
(i) Line plot
(ii) Scatter plot
(iii) Histogram
(iv) Box plot
(v) Bar chart and
(vi) Pie chart
11.
(i) Charts
(ii) Tables
(iii) Graphs
(iv) Maps
(v) Infographics
(vi) Dashboards
12.
Data Visualization is the graphical representation of information and data. The objective of Data Visualization is to communicate information visually to users.
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Tamilnadu Stateboard 12th Standard Subjects

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Chemistry

Physics

Biology

Computer Science

Business Maths and Statistics

Economics

Commerce

Accountancy

History

Computer Applications

Biology

Computer Technology

Computer Applications

Computer Science

Business Maths and Statistics

Commerce

Economics

Maths

Chemistry

Physics

Computer Technology

History

Accountancy

Tamil

English

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Tamilnadu Stateboard Standards