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Class 12th Computer Science - Data Visualization Using Pyplot: Line Chart, Pie Chart and Bar Chart Two Marks Questions

Published on: 27/09/2019

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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Std: 12th Standard - Computer Science

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Questions:

Generic 2

10 x 2 = 20

What are the two ways to display data in the form of diagram?

What is pip?

Write note or Box plot.

What is Dashboard?

What is Infographics data visualization?

Write the difference between the following functions: plt.plot([1,2,3,4]), plt.plot([1,2,3,4], [1,4,9,16]).

How will you install Matplotlib?

List the types of Visualizations in Matplotlib.

List the general types of data visualization.

10.

What is Data Visualization?

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Answers Key:

Generic 2

10 x 2 = 20

Bar Graph and Histogram are the two ways to display data in the form of a diagram.

Matplotlib installed using pip. Pip is a management software for installing python packages.

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.

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.

Infographics ￫ An infographic (information graphic) is the representation of information in a graphic format.

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)

We can install Matplotlib using Pip. Pip is a management software for installing Python packages.

(i) Line plot
(ii) Scatter plot
(iii) Histogram
(iv) Box plot
(v) Bar chart and
(vi) Pie chart

(i) Charts
(ii) Tables
(iii) Graphs
(iv) Maps
(v) Infographics
(vi) Dashboards

10.

Data Visualization is the graphical representation of information and data. The objective of Data Visualization is to communicate information visually to users.