Chapter Exam

Chapter 16: Data Visualization Using Pyplot — Online MCQ Test

Q: Which Python library is used with Pyplot for data visualization in this chapter?

Answer: A. Matplotlib — Pyplot is a module of the Matplotlib library. It is commonly used to create graphs and charts in Python.

Q: Which Pyplot function is used to display a line chart?

Answer: B. plt.plot() — The plt.plot() function is used to draw line graphs in Matplotlib. It is one of the most basic plotting functions.

Q: In plt.plot(x, y), what do x and y usually represent?

Answer: B. Data values for horizontal and vertical axes — In a plot, x values are placed on the horizontal axis and y values on the vertical axis. Together they define the points to be drawn.

Q: Which of the following is NOT a basic chart type discussed in this chapter?

Answer: D. Histogram — This chapter focuses on line charts, pie charts, and bar charts using Pyplot. Histogram is not one of the main chart types listed here.

Q: Which command correctly sets the title and x-axis label for a plot?

Answer: A. plt.xlabel('Marks'); plt.title('Result') — plt.title() is used for the graph title and plt.xlabel() is used for the x-axis label. The other options use the functions incorrectly.

COMPUTER SCIENCE · CLASS 12th · Tamil Nadu State Board

Practice Chapter 16: Data Visualization Using Pyplot with a free chapter-wise online MCQ test for Tamil Nadu State Board CLASS 12th COMPUTER SCIENCE. This chapter covers: The final chapter focuses on presenting data visually using the Matplotlib Pyplot library. Students learn to plot line charts pie charts and bar charts while customizing titles lab.... AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 16: Data Visualization Using Pyplot — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board CLASS 12th COMPUTER SCIENCE — Chapter 16: Data Visualization Using Pyplot, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which Python library is used with Pyplot for data visualization in this chapter?

A. Matplotlib ✓
B. NumPy
C. Pandas
D. SciPy

Answer: A. Matplotlib
Pyplot is a module of the Matplotlib library. It is commonly used to create graphs and charts in Python.

Which Pyplot function is used to display a line chart?

A. plt.line()
B. plt.plot() ✓
C. plt.draw()
D. plt.showline()

Answer: B. plt.plot()
The plt.plot() function is used to draw line graphs in Matplotlib. It is one of the most basic plotting functions.

In plt.plot(x, y), what do x and y usually represent?

A. Only labels of the graph
B. Data values for horizontal and vertical axes ✓
C. Color and line style
D. Title and legend

Answer: B. Data values for horizontal and vertical axes
In a plot, x values are placed on the horizontal axis and y values on the vertical axis. Together they define the points to be drawn.

Which of the following is NOT a basic chart type discussed in this chapter?

A. Line chart
B. Pie chart
C. Bar chart
D. Histogram ✓

Answer: D. Histogram
This chapter focuses on line charts, pie charts, and bar charts using Pyplot. Histogram is not one of the main chart types listed here.

Which command correctly sets the title and x-axis label for a plot?

A. plt.xlabel('Marks'); plt.title('Result') ✓
B. plt.ylabel('Result'); plt.title('Marks')
C. plt.legend('Result'); plt.xlabel('Marks')
D. plt.grid('Result'); plt.title('Marks')

Answer: A. plt.xlabel('Marks'); plt.title('Result')
plt.title() is used for the graph title and plt.xlabel() is used for the x-axis label. The other options use the functions incorrectly.