Quiz  /  Data Visualization Class 12 MCQ Questions With Answers

  • 1. 
    Given only the indicators listed on the graph, can one test for 7.8 pH?

  • No. There is not an indicator listed for that pH
  • Yes. Use Clayton Yellow for 7.8 pH
  • Yes. Use Propyl Red for 7.8 pH
  • Yes. Use Thymol Blue for 7.8 pH

  • 2. 
    It is better to use line plots when the data is related to time, like growth over years.

  • True
  • False

  • 3. 
    This is an example of a ________________ plot.

  • Column
  • Area
  • Scatter
  • Line

  • 4. 
    The bigger the data collection the better understanding of Data.

  • True
  • False

  • 5. 
    A coordinate system is used to describe:

  • Color
  • Flow chart
  • Points in space
  • Steps in problem solving

  • 6. 
    What type of data would best explain the speed and direction (velocity) of a hurricane?

  • Linear
  • Qualitative
  • Scalar
  • Vector

  • 7. 
    In data science, which of the python library are more popular ?

  • Numpy
  • Pandas
  • OpenCv
  • Django

  • 8. 
    ______________ function returns current date and time.

  • a) SET DATEFIRST
  • b) SYSDATETIME
  • c) Cert_ID
  • d) GETDATE

  • 9. 
    What is the output of the following program?y = 8z = lambda x: x * yprint z (6)

  • A. 48
  • B. 14
  • C. 64
  • D. None of the above

  • 10. 
    A visual representation of the statistical five number summary of a given dataset is known as _____________.

  • histogram
  • frequency distribution
  • boxplot
  • frequency polygon

  • 11. 
    Which type of data visualization is this?

  • Frequency table
  • Bar graph
  • Histogram
  • Scatterplot

  • 12. 
    Which of the following creates an object which maps data to a dictionary?

  • A. listreader()
  • B. reader()
  • C. tuplereader()
  • D. DicReader ()

  • 13. 
    Which of the following is correct Features of DataFrame?

  • Potentially columns are of different types
  • Can Perform Arithmetic operations on rows and columns
  • Labeled axes (rows and columns)
  • All of the above

  • 14. 
    The expansion of CRLF is

  • A. Control Return and Line Feed
  • B. Carriage Return and Form Feed
  • C. Control Router and Line Feed
  • D .Carriage Return and Line Fee

  • 15. 
    Given the numbers 60, 45, 40, 35, and 35, 40 is the:

  • Mean
  • Median
  • Mode
  • Variable

  • 16. 
    In regards to separated value files such as .csv and .tsv, what is the delimiter?

  • Any character such as the comma (,) or tab (\t) that is used to separate the column data.
  • Any character such as the comma (,) or tab (\t) that is used to separate the row data
  • Anywhere the comma (,) character is used in the file
  • Delimiters are not used in separated value files

  • 17. 
    Point out the correct combination with regards to kind keyword for graph plotting.

  • ‘hist’ for histogram
  • ‘box’ for boxplot
  • ‘area’ for area plots
  • all of the mentioned

  • 18. 
    What is the output of the following program?squares = {1:1, 2:4, 3:9, 4:16, 5:25}print(squares.pop(4))print(squares)

  • 16{1: 1, 2: 4, 3: 9, 5: 25}
  • 16{1: 1, 2: 4, 3: 9, 4:16, 5: 25}
  • 4{1: 1, 2: 4, 3: 9, 5: 25}
  • 4{1: 1, 2: 4, 3: 9, 4:16, 5: 25}

  • 19. 
    A _________ is a summarisation tool for discrete or continuous data.

  • Quartile
  • histogram
  • mean
  • median

  • 20. 
    Which is a python package used for 2D graphics?

  • A. matplotlib.pyplot
  • B. matplotlib.pip
  • C. matplotlib.numpy
  • D. matplotlib.plt

  • 21. 
    The graph below shows a car’s speed in miles per hour over a 5-second period. What did the car do over the 5 seconds?

  • Accelerated
  • Did not move
  • Had a constant speed
  • Slowed down

  • 22. 
    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

  • 23. 
    To install matplotlib, the following function will be typed in your command prompt. What does “-U”represents?Python –m pip install –U pip

  • A. downloading pip to the latest version
  • B . upgrading pip to the latest version
  • C. removing pip
  • D. upgrading matplotlib to the latest version

  • 24. 
    Data Frame in pandas is

  • a) 1 dimensional array
  • b) 2 dimensional array
  • c) 3 dimensional array
  • d) None of the above

  • 25. 
    Pyplot's _________ function is used to create histogram.

  • hist()
  • boxplot()
  • bar()
  • barh()
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