Graded Quiz: Advanced Visualizations and Geospatial Data :Data Visualization with Python (Applied Data Science Specialization) Answers 2025
1. Question 1
Seaborn is based on Matplotlib.
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✅ True
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❌ False
Explanation:
Seaborn is a high-level interface built on top of Matplotlib.
2. Question 2
Default map style in Folium:
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✅ Open Street Map
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❌ Stamen Terrain
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❌ Stamen Toner
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❌ Arial
Explanation:
Folium loads OpenStreetMap tiles by default.
3. Question 3
Initial zoom level code in Folium:
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✅ zoom_start=parameter
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❌ {zoom_start} parameter
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❌ (zoom_start) parameter
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❌ zoom-start parameter
Explanation:
Example: folium.Map(location=[lat,lon], zoom_start=10)
4. Question 4
Parameter specifying center latitude & longitude:
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❌ Geographic
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❌ Destination
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❌ Navigation
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✅ Location
Explanation:location=[lat,lon] sets map center.
5. Question 5
Represent specific locations / points of interest:
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❌ Zoom function
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✅ Markers
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❌ Locations
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❌ Navigation
Explanation:
Folium markers show clickable location icons.
6. Question 6
Choropleth map type:
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❌ Open Street Map
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✅ Thematic
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❌ Stamen Toner
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❌ Stamen Terrain
Explanation:
Choropleths show thematic data by color shading.
7. Question 7
Folium is a _______ library:
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❌ Choropleth
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❌ Folium
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✅ Python
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❌ Data
Explanation:
Folium is a Python library for interactive maps.
8. Question 8
Choropleth requires GeoJSON file.
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✅ True
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❌ False
Explanation:
GeoJSON provides boundary shapes for regions.
9. Question 9
Specialized plot types in Seaborn (Select two):
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❌ Bar plot
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✅ Regression plot
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✅ Categorical plot
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❌ Pie plot
Explanation:
Seaborn offers specialized high-level plots such as regression and categorical visuals.
10. Question 10
Charts representing categorical data as square tiles:
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✅ Waffle charts
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❌ Line charts
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❌ Bar charts
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❌ Pie charts
Explanation:
Waffle charts display categories as grids of squares.
🧾 SUMMARY TABLE
| Q | Answer | Key Concept |
|---|---|---|
| 1 | True | Seaborn–Matplotlib relationship |
| 2 | Open Street Map | Folium default tiles |
| 3 | zoom_start= | Zoom setting |
| 4 | Location | Map center |
| 5 | Markers | Map points |
| 6 | Thematic | Choropleth definition |
| 7 | Python | Folium type |
| 8 | True | GeoJSON requirement |
| 9 | Regression plot, Categorical plot | Seaborn specialized plots |
| 10 | Waffle charts | Categorical tile visualization |