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12th Computer Science Monthly Test - 2 ( Data visualization using pyplot: line chart, pie chart and

St. Britto Hr. Sec. School - Madurai

12th Computer Science Monthly Test - 2 ( Data visualization using pyplot: line chart, pie chart and -Aug 2020

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

Zoom in will require ___ and drag.

click
left click
double click
right click

Which plot displays the distribution of data based on the five number summary?

Scatter plot
Line plot
Box plot
Chart plot

Read the statements given below. Identify the right option from the following for pie chart.
Statement A: To make a pie chart with Matplotlib, we can use the plt.pie() function.
Statement B: The autopct parameter allows us to display the percentage value using the Python string formatting.

Statement A is correct
Statement B is correct
Both the statements are correct
Both the statements are wrong

To install matplotlib, the following function will be typed in your command prompt. What does “-U”represents?
Python –m pip install –U pip

downloading pip to the latest version
upgrading pip to the latest version
removing pip
upgrading matplotlib to the latest version

If a list given to the plot() command, matplotlib assumes it is a sequence of __ values.

x
y
0
4

Which button allows to configure various spacing options with figure?

configure plots
configure subplots
subplots configure
plots configure

In Scatter plot, the position of a point depends on its_________ value.

2 - Dimensional
3- Dimensional
1- Dimensional
7- Dimensional

Which of the following is not a five number summary in box plot visualization?

First Quartile
Second Quartile
Third Quartile
Minimum

Which of the following command will take an arbitrary number of arguments?

show()
plot()
legend()
title()

The different kinds of plot created using

Matplotlib
Matplot
Plotlib
Matliplot

Identify the right type of chart using the following hints.
Hint 1: This chart is often used to visualize a trend in data over intervals of time.
Hint 2: The line in this type of chart is often drawn chronologically.

Line chart
Bar chart
Pie chart
Scatter plot

Data visualization used _________ graphics.

2D
3D
Statistical
Image

Which of the following is a type of plot that shows the data as a collection of points?

Box plot
Chart plot
Line plot
Scatter plot

Which of the following plot we cannot rearrange the blocks from highest to lowest?

Line
Bar chart
Pie chart
Histogram

Which plot is a circular graphical representation of numerical data?

Histogram
xyplot
Bar plot
Pie chart

Identify the package manager for Python packages, or modules.

Matplotlib
PIP
plt.show()
python package

Which of the following command is used to install matplotlib for coding?

import plt.matjJlotlib as plot
import plot.matplotlib as plt
import matplotlib.plt as plot
import matplotlib.pyplot as plt

Which type of charts displays information as series of data points?

Bar
Pie
Line
Histogram

Which is a python package used for 2D graphics?

matplotlib.pyplot
matplotlib.pip
matplotlib.numpy
matplotlib.plt

Which parameter used to display() the percentage value using Python string formatting in pie chart?

percent
autopct
pct
percentage

Which of the following is not a type of Data Visualization?

Graphs
Picture
Maps
Infographics

Which of the following is a collection of resources assembled to create a single unified visual display?

Info graphics
Dashboard
Graphics
Chats

In which plot the width of the bars may or may not be same?

Histogram
Pie chat
Bar chat
Line

Which kind of data encoded visually communicate a quantitative message?

String
Numbers
Images
None of these

________ in data visualization helps to show relationship in the data for more variables.

Tables
Graphics
Charts
Dashboards

Read the code:
a. import matplotlib.pyplot as plt
b. plt.plot(3,2)
c. plt.show()
Identify the output for the above coding

Which of the following is the representation of information in a graphic format?

Info graphics
Graphics
Dashboard
Charts

Matplotlib allows you to create a

Table
Charts
Maps
Info graphics

Read the following code: Identify the purpose of this code and choose the right option from the following.
C:\Users\YourName\AppData\Local\Programs\Python\Python36-32\Scripts>pip –version

Check if PIP is Installed
Install PIP
Download a Package
Check PIP version

The numerical data is encoded using

dots
lines
bars
all of these

Part - B

Generic 2 - Answer All Question

import matplotlib.pyplot as plt
plt.plot([1,2,3,4])
plt.show()

List the general types of data visualization.

Write a note on Dashboard.

Define: Data Visualization.

Write a note on matplotlib or which python library is used to create data visualization? ·

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

What is pip?

List the types of Visualizations in Matplotlib.

Which plot shows the data as a collection of points? Explain or write a note on scatter plot.

Write note or Box plot.

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

What is Infographics data visualization?

How will you install Matplotlib?

Part - C

Generic 3 - Answer All Question

Read the following code. What does the following represents.

(i) Labels
(ii) Usage
(iii) X ticks
(iv) Range
(v) Show

Write a python code to display the following plot.

Write a python code to display the following plot.

import matplotlib.pyplot as plt
years = [2014, 2015, 2016, 2017, 2018]
total_populations = [8939007, 8954518, 8960387, 8956741, 8943721]
plt.plot (years, total_populations)
plt.title ("Year vs Population in India")
plt.xlabel ("Year")
plt.ylabel ("Total Population")
plt.show()
In this program,
Plt.title() → specifies title to the graph
Plt.xlabel() → specifies label for X-axis
Plt.ylabel() → specifies label for Y-axis

Draw the output for the following data visualization plot.
import matplotlib.pyplot as plt
plt.bar([1,3,5,7,9],[5,2,7,8,2], label="Example one")
plt.bar([2,4,6,8,10],[8,6,2,5,6], label="Example two", color='g')
plt.legend()
plt.xlabel('bar number')
plt.ylabel('bar height')
plt.title('Epic Graph\nAnother Line! Whoa')
plt.show()

Write any three uses of data visualization.

import matplotlib.pyplot as plt
# Our data
labels = ["TAMIL", "ENGLISH", "MATHS", "PHYSICS", "CHEMISTRY", "CS"]
usage = [79.8, 67.3, 77.8, 68.4, 70.2, 88.5]
# Generating the y positions. Later, we'll use them to replace them with labels.
y_positions = range (len(labels))
# Creating our bar plot
plt.bar (y_positions, usage)
plt.xticks (y_positions, labels)
plt.ylabel ("RANGE")
plt.title ("MARKS")
plt.show()

List the buttons in matlibplot window.

Part - D

Generic 5 - Answer All Question

import matplotlib.pyplot as plt
sizes = [89, 80, 90, 100, 75]
labels = ["Tamil", "English", "Maths", "Science", "Social"]
plt.pie (sizes, labels = labels, autopct = "%.2f")
plt.axes().set_aspect ("equal")
plt.show()

Explain the various buttons in a matplotlib window.

Write the key differences between Histogram and bar graph.

Explain the purpose of the following functions:
a. plt.xlabel
b. plt.ylabel
c. plt.title
d. plt.legend()
e. plt.show()

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