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12th Standard Computer Science English Medium Data Visualization Using Pyplot Reduced Syllabus Important Questions 2021

12th Standard

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Computer Science

Time : 01:00:00 Hrs
Total Marks : 100

      Multiple Choice Questions


    22 x 1 = 22
  1. Identify the package manager for Python packages, or modules.

    (a)

    Matplotlib

    (b)

    PIP

    (c)

    plt.show()

    (d)

    python package

  2. 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

    (a)

    Check if PIP is Installed

    (b)

    Install PIP

    (c)

    Download a Package

    (d)

    Check PIP version

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

    (a)

    List installed packages

    (b)

    list command

    (c)

    Install PIP

    (d)

    packages installed

  4. 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.

    (a)

    Line chart

    (b)

    Bar chart

    (c)

    Pie chart

    (d)

    Scatter plot

  5. The numerical data is encoded using

    (a)

    dots

    (b)

    lines

    (c)

    bars

    (d)

    all of these

  6. Which of the following translate complex ideas and concepts into a simple visual format?
    (i) Data visualization
    (ii) Dashboards
    (iii) Tables
    (iv) Maps

    (a)

    i,iii

    (b)

    iii, i

    (c)

    i, iv

    (d)

    i, ii

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

    (a)

    Box plot

    (b)

    Chart plot

    (c)

    Line plot

    (d)

    Scatter plot

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

    (a)

    Scatter plot

    (b)

    Line plot

    (c)

    Box plot

    (d)

    Chart plot

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

    (a)

    First Quartile

    (b)

    Second Quartile

    (c)

    Third Quartile

    (d)

    Minimum

  10. The default x.vector has the same length of y but starts with

    (a)

    3

    (b)

    2

    (c)

    1

    (d)

    0

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

    (a)

    show ( )

    (b)

    plot ( )

    (c)

    legend ( )

    (d)

    title ( )

  12. Which button will help to navigate the chart?

    (a)

    Navigate

    (b)

    Pan

    (c)

    Home

    (d)

    Zoom

  13. A line chart is type of chart which displays on formats as a data points called

    (a)

    series

    (b)

    markers

    (c)

    plot

    (d)

    lib

  14. Which of the following one indicates discontinuity?

    (a)

    Histogram

    (b)

    Pie

    (c)

    Bar graph 

    (d)

    None of these

  15. Which plot is a circular graphical representation of numerical data?

    (a)

    Histogram

    (b)

    xy plot

    (c)

    Bar plot

    (d)

    Pie chart

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

    (a)

    percent

    (b)

    autopct

    (c)

    pet

    (d)

    percentage

  17. Data visualization used ________ graphics.

    (a)

    2D

    (b)

    3D

    (c)

    Statistical

    (d)

    Image

  18. _______ is the graphical representation of information and data.

    (a)

    Data visualization

    (b)

    Data Graphics

    (c)

    Data Dimension

    (d)

    Data Images

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

    (a)

    Tables

    (b)

    Graphics

    (c)

    Charts

    (d)

    Dashboards

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

    (a)

    X

    (b)

    Y

    (c)

    0

    (d)

    4

  21. Zoom out will require ________ and drag.

    (a)

    click

    (b)

    left click

    (c)

    double click

    (d)

    right click

  22. ________ and ______  are the two ways to display data in the form of diagram.

    (a)

    Line chart, Pie chart

    (b)

    Line chart, Bar chart

    (c)

    Bar Graph, Histogram

    (d)

    Line chart, Histogram

    1. 2 Marks


    12 x 2 = 24
  23. Define: Data Visualization.

  24. List the general types of data visualization.

  25. List the types of Visualizations in Matplotlib.

  26. How will you install Matplotlib?

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

  28. What is Infographics data visualization?

  29. Write a note on Dashboard.

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

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

  32. Write note or Box plot.

  33. What is pip?

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

    1. 3 Marks


    8 x 3 = 24
  35. 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()

  36. Write any three uses of data visualization.

  37. Write the coding for the following:
    a. To check if PIP is Installed in your PC.
    b. To Check the version of PIP installed in your PC.
    c. To list the packages in matplotlib.

  38. Write the plot for the following pie chart output.

  39. Write a python code to display the following plot.

  40. Write a python code to display the following plot.

  41. List the buttons in matlibplot window.

  42. Read the following code. What does the following represents.
    (i) Labels
    (ii) Usage
    (iii) X ticks
    (iv) Range
    (v) Show

    1. 5 Marks


    6 x 5 = 30
  43. Explain in detail the types of pyplots using Matplotlib.

  44. Explain the various buttons in a matplotlib window.

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

  46. Write a python code to display the following, plot.

  47. Write the key differences between Histogram and bar graph.

  48. Write s python code to display to following plot.
    Program

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