Matplot Lib MCQs with answers Page - 5

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Q. How can you reverse the x-axis direction in a plot?

  • (A) plt.xreverse()
  • (B) plt.axis('reversed')
  • (C) plt.gca().invert_xaxis()
  • (D) plt.flip('x')

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Q. What does 'plt.colorbar()' do?

  • (A) Adds a color legend to a plot
  • (B) Adds a color to each bar in bar chart
  • (C) Changes the background color
  • (D) Enables colored gridlines

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Q. How do you create a filled area under a curve in Matplotlib?

  • (A) plt.fill_between()
  • (B) plt.shade()
  • (C) plt.underplot()
  • (D) plt.area()

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Q. Which method is used to save a figure with transparent background?

  • (A) plt.save_transparent()
  • (B) plt.savefig('file.png', transparent=True)
  • (C) plt.writefile(transparent=True)
  • (D) plt.trans_save()

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Q. What is the role of 'cmap' in plt.imshow()?

  • (A) Controls zoom level
  • (B) Changes resolution
  • (C) Specifies color map
  • (D) Adds contour lines

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Q. Which of these is NOT a valid marker in Matplotlib?

  • (A) 'o'
  • (B) 'x'
  • (C) '#'
  • (D) '*'

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Q. What does plt.rcParams allow you to do?

  • (A) Read CSV files
  • (B) Reset the canvas
  • (C) Change global default settings
  • (D) Zoom in a figure

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Q. Which parameter controls the angle of x-axis tick labels?

  • (A) rotation
  • (B) slant
  • (C) angle
  • (D) align

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Q. What is the result of 'plt.hist(data)'?

  • (A) Pie chart
  • (B) Line graph
  • (C) Bar chart showing data distribution
  • (D) 3D scatter plot

A

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Q. What does 'sharex=True' do in plt.subplots()?

  • (A) Links x-axis of all subplots
  • (B) Adds x-axis labels
  • (C) Synchronizes figure titles
  • (D) Automatically plots x-ticks

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