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Final Exam.md

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Question 1: Data visualizations are used to (check all that apply)

  • A. [X] explore a given dataset.
  • B. [ ] perform data analytics and build predictive models.
  • C. [ ] train and test a machine learning algorithm.
  • D. [X] share unbiased representation of data.
  • E. [X] support recommendations to different stakeholders.

Question 2: The three layers that make up the _________ architecture are the backend, the artist, and the scripting layers.

  • A. [ ] Pyplot
  • B. [ ] Matlab
  • C. [ ] Seaborn
  • D. [X] Matplotlib

Question 3: What layer allows full control and fine-tuning of the Matplotlib – the top-level container for all plot elements?

  • A. [ ] Event layer
  • B. [ ] Backend layer
  • C. [ ] Scripting layer
  • D. [X] Artist layer

Question 4: Which of the following codes will create an unstacked area plot of the data in the pandas dataframe, area_df, with a transparency value of 0.55?

  • A. [ ]
transparency = 0.35 ax = area_df.plot(kind='area', alpha=transparency, stacked=False, figsize=(20, 10)) ax.title('Plot Title') ax.ylabel('Vertical Axis Label') ax.xlabel('Horizontal Axis Label')
  • B. [ ]
import matplotlib.pyplot as plt transparency = 1 - 0.55 area_df.plot(kind='area', alpha=transparency, stacked=False, figsize=(20, 10)) plt.title('Plot Title') plt.ylabel('Vertical Axis Label') plt.xlabel('Horizontal Axis Label') plt.show()
  • C. [X]
transparency = 0.55 ax = area_df.plot(kind='area', alpha=transparency, stacked=False, figsize=(20, 10)) ax.set_title('Plot Title') ax.set_ylabel('Vertical Axis Label') ax.set_xlabel('Horizontal Axis Label')
  • D. [ ]
import matplotlib.pyplot as plt area_df.plot(kind='area', stacked=False, figsize=(20, 10)) plt.title('Plot Title') plt.ylabel('Vertical Axis Label') plt.xlabel('Horizontal Axis Label') plt.show()

Question 5: Pie charts are less confusing than bar charts and should be your first attempt when creating a visual.

  • A. [ ] True
  • B. [X] False

Question 6: What is a variation of the scatter plot that displays three dimensions of data?

  • A. [ ] A heatmap
  • B. [X] A bubble plot
  • C. [ ] A scatter map
  • D. [ ] None of the above

Question 7: A waffle chart is a great way to visualize data in relation to a whole or to highlight progress against a given threshold.

  • A. [X] True
  • B. [ ] False

Question 8: Which of the following is NOT TRUE regarding a word cloud?

  • A. [ ] A Word Cloud can be generated in Python using the word_cloud package that was developed by Andreas Mueller.
  • B. [X] A Word Cloud is a depiction of the frequency of the stopwords, such as a, the, and, in some textual data.
  • C. [ ] A Word Cloud is a depiction of the frequency of different words in some textual data.
  • D. [ ] None of the above.

Question 9: Which of the following are tile styles of Folium maps?

  • A. [ ] Stamen Terrain
  • B. [ ] OpenStreetMap
  • C. [ ] Mapbox Control Room
  • D. [ ] Stamen Watercolor
  • E. [X] All of the above

Question 10: What is the correct tile style for Folium maps that feature hill shading and natural vegetation colors?

  • A. [ ] Stamen Watercolor
  • B. [X] Stamen Terrain
  • C. [ ] OpenStreetMap
  • D. [ ] Mapbox Bright

Question 11: Which of the following statements is true for Plotly?

  • A. [ ] Includes chart types like statistical, financial, maps, scientific, and 3-dimensional.
  • B. [ ] Supports over 40 unique chart types.
  • C. [ ] An interactive, open-source plotting library.
  • D. [X] All of the above.

Question 12: Which of the following is NOT true regarding Dash core components?

  • A. [X] Higher-level components that are not interactive and generated with JavaScript, HTML, and CSS through the jQuery.js library.
  • B. [ ] Examples are creating a slider, input area, check items, datepicker and so on.
  • C. [ ] Higher-level components that are interactive and are generated with JavaScript, HTML, and CSS through the React.js library.
  • D. [ ] None of the above.