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| Data Visualization with Python | Coursera |
Graded Quiz: Introduction to Data Visualization Tools
1. Matplotlib was created by:
- John Hunter, an American neurobiologist
- James Gosling, a Canadian computer scientist
- Cleve Moler, an American mathematician and computer programmer
- Daniel Johnson, a German physicist
2. Using the inline backend, at what point can you not modify a figure?
- After it is created
- Before it is rendered
- After it is rendered
- After it is coded
3. Using Matplotlib magic functions which code starts the command?
- %matplotlib inline
- $matplotlib outline
- %matplotlib
- %matplotlib notebook
4. True or False. A line plot displays information as a series of data
points connected by straight lines.
- True
- False
5. True or False. Matplotlibs three main layers are: Backend, Artist, and
Scripting.
- False
- True
6. What is Jupyter Notebook?
- A Python library with a number of different backends available
- It is a tool used for creating conventional visualization tools using the plot function
- An open-source web application that allows you to create and share documents that contain live code, visualizations, and some explanatory text as well
- A well-established data visualization library that can be integrated into different environments
7. Matplotlib was initially developed as what kind of tool?
- Chart creation
- Graphing
- Data analyzer
- Visualization
8. True or False. The backend layers three built-in interface classes are
FigureCanvas, Renderer, and Event.
- False
- True
9. True or False. Line plots capture trends and changes over time, allowing
us to see patterns and fluctuations.
- False
- True
10. Which of the following plots is ideal for comparing different categories
or groups?
- Scatter plots
- Line plots
- Bar plots
- Pie plots
Graded Quiz: Basic and Specialized Visualization Tools
1. What does a scatter plot display?
- Values pertaining to typically two variables against each other.
- Graphs
- Data
- Numbers
2. The ______ module offers a convenient way to create and customize plots
quickly?
- Pyplot
- Numpy
- Folium
- Plotly
3. Fill in the blank. A pie chart is a circular statistical graphic, divided
into _______, to illustrate numerical proportion.
- Segments
- Plots
- Graphs
- Columns
4. True or False. A box plot has five primary dimensions to statistically
represent the distribution of a given data?
- True
- False
5. Area plots are like a line plot but with the area below the line filled
with color to emphasize the cumulative _______ of the variables.
- Magnitude
- Longitude
- Significance
- Latitude
6.
In the above chart, what do the letters in the box plot above represent?
- A = Median, B = Third Quartile, C = Mean, D = Inter Quartile Range, E = Lower Quartile, and F = Outliers
- A = Median, B = Third Quartile, C = First Quartile, D = Inter Quartile Range, E = Minimum, and F = Outliers
- A = Mean, B = Third Quartile, C = First Quartile, D = Inter Quartile Range, E = Minimum, and F = Maximum
- A = Mean, B = Upper Mean Quartile, C = Lower Mean Quartile, D = Inter Quartile Range, E = Minimum, and F = Outliers
7. What is the correct combination of function and parameter to create a box
plot in Matplotlib?
- Function = plot, and Parameter = type with value = "box"
- Function = boxplot, and Parameter = type with value = "plot"
- Function = plot, and Parameter = kind with value = "boxplot"
- Function = plot, and Parameter = kind with value = "box"
8. True or False. The first step when creating a histogram in matplotlib is
to import matplotlib as mpl and its scripting interface as plt.
- False
- True
9. True or False. The process of creating a scatter plot involves importing
Matplotlib to visualize a large set of data.
- True
- False
10. True or False. A bar chart is also known as a Bar graph.
- False
- True
Graded Quiz: Advanced Visualizations and Geospatial Data
1. Although Seaborn is another data visualization library, it is based on
_______.
- NumPy
- SciPy
- Matplotlib
- Pandas
2. The default map style in Folium is the ___________.
- Stamen Terrain
- Open Street Map
- Arial
- Stamen Toner
3. What is the code for setting the initial zoom level in Folium?
- zoom-start parameter
- {zoom_start} parameter
- (zoom_start) parameter
- zoom_start=parameter
4. What parameter specify the latitude and longitude coordinates of the
map’s center point?
- Destination
- Location
- Navigation
- Geographic
5. __________ represent specific locations or points of interest, providing
additional information when clicked.
- Navigation
- Markers
- Locations
- Zoom function
6. What type of map does a Choropleth map represent?
- Stamen Terrain
- Open Street Map
- Stamen Toner
- Thematic
7. Folium is a _______ library used for creating interactive maps and
visualizations.
- Python
- Data
- Folium
- Choropleth
8. True or False. To create a choropleth map of a region of interest, Folium
requires a GeoJson file that includes geospatial data of the region.
- False
- True
9. True or False. Seaborn provides specialized plot types such as
regression, distribution, and categorical plots that are particularly useful
for analyzing data and modeling relationships.
- False
- True
10. True or False. Waffle charts are a visualization technique that
represents categorical data in the form of square tiles or cells.
- True
- False
Graded Quiz: Creating Dashboards with Plotly and Dash
1. True or False. Web-based visualizations created using Plotly Python can
be displayed in Jupyter Notebook, saved to standalone HTML files, or served
as part of pure Python-built web applications using Dash.
- True
- False
2. True or False. The Plotly graph objects module provides an automatically
generated hierarchy of classes. It is the low-level interface to figures,
traces, and layouts.
- False
- True
3. Which Plotly.graph object has a dictionary structure?
- Graph
- Figure
- JSON
- Plotly
4. Fill in the bank. Dashboards offer _____ in real-time.
- Chat
- Videos
- Messages
- Visuals
5. _______ is a comprehensive library for creating static, animated, and
interactive visualizations in Python.
- Dash
- Matplotlib
- Plotly
- JSON
6. True or False. Data can be presented by using different types of
dashboards.
- True
- False
7. _____ Express is a high-level wrapper for Plotly.
- Matplotlib
- Python
- JSON
- Plotly
8. What is a callback function?
- A decorator
- An extension
- A line of Code
- A file
9. Dash is an Open-Source User Interface Python library for creating
reactive, _________.
- Web-based applications
- Graphs
- Data
- Code
10. True or False. Output sets results returned from the callback function
to a component id.
- False
- True
Final Exam: Data Visualization with Python - Timed Quiz
1. Which data visualization feature helps data scientists gain access to
original data?
- Support recommendations to different stakeholders
- Share unbiased representation of data
- Communicate data early
- Explore a given dataset
2. Which layer within the Matplotlib architecture generates graphics and
plots quickly and easily?
- FigureCanvas
- Figure Layer
- Backend Layer
- Scripting Layer
3. Which plot library is an excellent choice for geospatial data
visualization and helps to create interactive and customizable maps?
- PyWaffle
- Folium
- Matplotlib
- Seaborn
4. Using Matplotlib magic functions which code starts the command?
- %matplotlib inline
- %matplotlib
- %matplotlib notebook
- $matplotlib outline
5. For what purpose is an area plot commonly used?
- Retrieve data
- Sorting the data frame
- To compare two or more quantities
- Create a new data frame
6. What is a way of statistically representing the distribution of the data
through five main dimensions?
- Scatter plot
- Line plot
- Box plot
- Histogram
7. Which dimension of the box plot signifies the smallest number in the
sorted data?
- Median
- First quartile
- Third quartile
- Minimum
8. Where can Waffle Charts be applied?
- Customer feedback analysis
- Social media analysis
- Budget allocation
- Market research
9. Which tool depicts the importance of different words in the body of text?
- A Regression Plot
- A Box Plot
- A Waffle Chart
- A Word Cloud
10. What type of file does Folium require to create a Choropleth map of a
specific region?
- HTML
- Geo
- Json
- GeoJson
11. What feature enhances interactivity and provides contextual information
to maps?
- Longitude
- Zoom function
- Markers
- Latitude
12. Which tool would you use for creating static, animated, and interactive
visualizations in Python?
- Bowtie
- Flask
- Matplotlib
- ipywidgets
13. What is the key difference between Plotly Graph Objects and Plotly
Express?
- Plotly Graph Objects requires fewer commands, while Plotly Express automatically generates layout and figure objects.
- Plotly Graph Objects focuses on 3-dimensional data, while Plotly Express focuses on statistical analysis.
- Plotly Graph Objects is a high-level wrapper, while Plotly Express is a low-level interface.
- Plotly Graph Objects provides a simpler syntax, while Plotly Express offers more customization options.
14. What does the @app.callback decorator in Dash indicate?
- It specifies the output component’s ID.
- It defines the callback function.
- It connects the input and output components.
- It specifies the input component’s ID.
15. What is a callback function?
- A decorator
- A line of code
- An extension
- A file