Course 6 – Share Data Through the Art of Visualization Quiz Answers

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1 Week 2: Creative Data Visualization with Tableau
2 CREATIVE DATA VISUALIZATION WITH TABLEAU INTRODUCTION
3 Test your knowledge on getting started with tableau
4 Test Your Knowledge on Creating a Visualization with Tableau
5 Share Data Through the Art of Visualization Weekly Challenge 2
6 CREATIVE DATA VISUALIZATION WITH TABLEAU CONCLUSION
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Week 2: Creative Data Visualization with Tableau

CREATIVE DATA VISUALIZATION WITH TABLEAU INTRODUCTION

Tableau is an outstanding data visualisation tool that allows one to create fine visualisation almost effortlessly and in no time. Using the world happiness data set on Tableau, one can view possibilities via maps, charts, graphs, and many other visual scaffolds. This flexibility and ease of use are why Tableau is available in business organizations: it points towards meaningful insights.

Tableau has also been introduced in Coursera-based Google Data Analytics courses as part of their certificate program, learning how students could navigate this valuable data analysis tool. The attributes in Tableau are many that help analysts look for meaningful insights; such features include filtering, drilling down, and types of charts that enable a user to deeply explore patterns in data.

Goal of Learning:

  • Identify Tableau as a data visualization tool and understand its use
  • How can data visualisation spark creativity and clarity in communicating findings
  • Choose pictures according to different presentation situations
  • Analysis of various forms of data visualisation and their significance
  • Visualisation with more than one source of data
  • Discuss the accessibility challenge of data visualization

Test your knowledge on getting started with tableau

1. As a business intelligence and analytics platform, Tableau enables you to do what with data? Select all that apply.

  • Check and clean data in databases
  • Create and share interactive dashboards with data (Correct)
  • Observe and understand data to make decisions (Correct)
  • Connect to data in databases, spreadsheets, or CSV files (Correct)

Correct: Tableau enables you to examine and use data for making informed choices. This tool links directly to several data sources, such as, but not limited to, databases, spreadsheets, and CSV files. Create and distribute interactive dashboards using Tableau, and make them an awesome way to communicate and present insights.

2. Compare Tableau to other data visualization software such as Looker and Google Data Studio. What feature is unique to Tableau?

  • Integration of multiple data sources
  • Connectivity to SQL databases
  • Desktop version for users (Correct)
  • Drag and drop functionality to create visualizations

Correct: Tableau has made both desktop and browser-based versions available for its users depending on what one prefers. Looking at it from a different angle, Looker and Google Data Studio are strictly browser-based. Companies preferring cloud-based services for the scalability and accessibility that it provides generally go for browser-based solutions while desktop solutions such as the desktop version of Tableau would have very limited appeal to companies running services on private networks because of the control and security advantages they offer.

3. Fill in the blank: When using Tableau Public, click the Gallery tab to access _____.

  • how-to videos
  • blog articles
  • public visualizations (Correct)
  • sample data

Correct: The Gallery of Tableau Public displays examples of data visualization contributed by users all over the world. It is a place to share and browse everywhere from simple to complicated visualizations: a source of inspiration and understanding of how others use Tableau for data analysis and presentations.

Test Your Knowledge on Creating a Visualization with Tableau

1. A diverging color palette in Tableau displays characteristics of values using what color combination?

  • Hue for the range and tint for the margin of error
  • Intensity for the range and hue for the magnitude
  • Intensity for the magnitude and hue for the range (Correct)
  • Shade for the accuracy and grayscale for the reliability

Correct: A diverging color palette in Tableau is used to signify the size and scope potential of a value, with the intensity denoting the magnitude and the hue – its range, usually with two contrasting colors at opposite ends to highlight its divergence from a central point or neutral value. It provides an immediate visual distinction between extremes of data with bottom and top category values.

2. A data analyst creates a Tableau visualization to compare the trade (amount of goods and services exchanged) between the European Union (EU) and Australia. Which color choice could be misleading?

  • Green for the EU and red for Australia (Correct)
  • Blue for the EU and gray for Australia
  • Beige for the EU and purple for Australia
  • Orange for the EU and brown for Australia

Correct: People relates green to things that are good and red to things that are bad. Misleading applications may make it difficult to interpret. For example, green may sound like the EU has a trade surplus while red may mislead people into thinking that Australia has a trade deficit. Choose the colors through and in accordance with the data and the context so as to avoid argument in the interpretation.

3. How could you adjust the labels to make the following visualization more effective? Select all that apply.

Course_6_Week_2
  • Move the labels to white space on the map
  • Change the font color for the labels from black to white
  • Reduce the number of labels (Correct)
  • Use a single font for the labels (Correct)

Correct: Enhanced personnel evaluation may also be achieved by reducing the labels for every country into one using the same font. Such a simplification enhances readability and clarity of the arising visuals by minimizing visual noise and increasing the lucidity of the labels.

Share Data Through the Art of Visualization Weekly Challenge 2

1. Tableau is used to create dynamic and interactive visualizations. Dynamic visualizations can change over time. What does it mean for a visualization to be interactive?

  • The audience can export the datasets.
  • The audience can collaborate on changes to the data.
  • The audience can control what data they see. (Correct)
  • The audience can listen to audio about the data.

Correct: An interactive visualization usually allows its audience control over what data they should view and how they should be interpreting it to open the way into exploring and filtering the different perspectives on, and insights that could be gained from, the information.

2. A data analyst is using the Color tool in Tableau to apply a color scheme to a data visualization. They want the visualization to be accessible for people with color vision deficiencies, so they use a color scheme with lots of contrast. What does it mean to have contrast?

  • The color scheme uses a range of different colors (Correct)
  • The color scheme is uniform
  • The color scheme is monotone
  • The color scheme is graphically pleasing

Correct: The data analyst ensures the scheme of color contrasts so as to make the visualization available to people who do not have vision in colors. By choosing colors that are easy to distinguish even for those having slight perception of colors, the visual data becomes more accessible and meaningful to a greater audience.

3. You are working with the World Happiness data in Tableau. What tool do you use to select the area on the map representing Central America?

  • Rectangular
  • Radial
  • Lasso (Correct)
  • Pan

Correct: For defining the area on your map that includes Central America, you may want to consider using the Lasso tool. This tool allows you to draw a shape that will highlight precisely how much space you wish to select around the given location.

4. A data analyst is using the Pan tool in Tableau. What are they doing?

  • Taking a screenshot of the visualization
  • Deselecting a data point from within the visualization
  • Rotating the perspective while keeping a certain object in view (Correct)
  • Moving a data point to another location in the visualization

Correct: The Pan tool is in action for view adjustments. It enables moving around within the visualization while focusing on a single object or area. The tool helps in exploring other perspectives while keeping the object intact in terms of size and rotation.

5. You are using the Label tool in Tableau. What will it enable you to do with the World Happiness map visualizations?

  • Increase the size of a country on the map
  • Separate out a selected country on the map
  • Hide certain countries on the map
  • Display the population of each country on the map (Correct)

Correct: You can add another information output such as the population of each country on the map using the Label tool, which is helpful in giving an explanation and making the data more informative and accessible to visualizers.

6. You are working with the World Happiness data in Tableau. Which tool will enable you to show certain data while hiding the rest?

  • Filter (Correct)
  • Format
  • Dimension
  • Attribute

Correct: To show certain data while hiding the rest, use the Filter tool.

7. By default, all visualizations you create using Tableau Public are available to other users. What icon do you click to hide a visualization?

  • Source
  • Eye (Correct)
  • Private
  • Close

Correct: To hide the visualization from other users, you usually click on the Eye icon. The Eye icon mostly represents visibility settings, which allow you to toggle whether you want to make the visualization available to others or keep it to yourself.

8. Fill in the blank: In Tableau, a _____ palette displays two value ranges. Color shows the range where a data point is from, and color intensity shows its magnitude.

  • inverting
  • overlaying
  • diverging (Correct)
  • contrasting

Correct: The Color palette diverging in Tableau portrays two extents of values, with each limit represented by differing hues. The hue of a color describes the range a data point falls within, while the saturation or brightness of the color recites the magnitude of the value to be assigned. Thus, modifications become noticeable and allow interpreting the direction and also the strength more straightforwardly.

9. You are using Tableau Public to create a data visualization. In order to keep your visualization hidden from other users, you click the Show/Hide icon.

  • True
  • False (CORRECT)

One would click the Eye icon to keep that visualization private from other people on Tableau. This usually toggles the visibility setting of the visualization, making it hidden or private while still in the system.

10. By default, all visualizations you create using Tableau Public are available to other users. What icon do you click to hide a visualization in Tableau?

  • Source
  • Eye (CORRECT)
  • Close
  • Private

To hide a visualization from other users, click the Eye icon.

11. When working with the World Happiness data in Tableau, what could you use the Filter tool to do?

  • Zoom out to reveal the entire world
  • Show only countries with a World Happiness score of 3.5 or lower (CORRECT)
  • Reformat every country in Asia
  • Permanently delete countries without a happiness score

You can also apply the Filter tool in Tableau so you can display only those countries that have a World Happiness scoring of 3.5 or less. You can filter by score to show those countries in the visualization, which will permit you to analyze or present information based on specific criteria.

12. Fill in the blank: A data analyst is working with the World Happiness data in Tableau. To get a better view of Moldova, they use the _____ tool.

  • Radial
  • Pan (CORRECT)
  • Lasso
  • Rectangular

To get a better view of Moldova, they use the Pan tool.

13. A data analyst creates a scatter plot in Tableau and notices an outlier. What should they do next?

  • Remove the outlier, as it is unlikely to lead to any important observations
  • Investigate the outlier to determine if it can lead to any important observations (CORRECT)
  • Use a filter to highlight the outlier, as it is more important than the rest of the data
  • Remove the outlier, as it is unlikely to lead to any important observations
  • Shift the outlier to the center of the other data points for conformity

The data analyst would then be left with investigating that outlier in a scatter plot. It indicates that perhaps a powerful trend has been discovered or some part of data has been incorrectly entered, or it may have significant observances. It might contain valuable information that such an outlier may have been caused by important trends or due to errors in data collection or other such phenomena. The outlier can be analyzed whether it is useful for the analysis by including or excluding it and by seeing its influence on the overall deductions made from it.

14. A data analyst is working with the world happiness data in tableau. what tool do they use to select the area on the map representing Finland?

  • Radial
  • Pan
  • Lasso (CORRECT)
  • Rectangular

To select the area on the map representing Finland, use the Lasso tool.

15. You are working with the World Happiness data in Tableau. What tool do you use to select the area on the map representing Central America?

  • Radial
  • Pan
  • Lasso (CORRECT)
  • Rectangular

You can use the Lasso tool to select a part of the map that represents Central America. The tool will enable you to click and drag around the area, creating whatever shape you’d like as a selection region. This is particularly good when you want to select a region that has a somewhat complicated or freeform shape.

16. A data analyst uses the color tool in tableau to apply a color scheme to a data visualization. in order to make the visualization accessible for people with color vision deficiencies, what should they do next?

Make sure the color scheme has contrast (CORRECT)

17. Tableau is used to create interactive and dynamic visualizations. A visualization is interactive when the audience can control what data they see. What does it mean for a visualization to be dynamic?

The visualization can change over time (CORRECT)

18. A data analyst uses Tableau Public to create a data visualization. They are still refining the visualization and want to prevent misinterpretation by others until it is finished. Which icon should they click to keep their visualization private?

  • Lock
  • Source
  • Private
  • Eye (CORRECT)

19. A data team uses Tableau to create a scatter plot of sales data, with the ability to filter by region, product, or time period. This enables sales managers to view how sales are trending in different regions, for different products, and over time. What type of visualization are they using?

  • Infographic
  • Interactive (CORRECT)
  • Public
  • Static

20. Fill in the blank: In Tableau, a _____ palette is a color theme that displays two ranges of data values using two different hues, with color intensity representing the magnitude of the values. 

  • Diverging (CORRECT)
  • overlayed
  • inverted
  • contrasting

21. While designing a bar chart in Tableau, you use a color scheme with high contrast between the bars to ensure they are easy to distinguish for people with color vision deficiencies. What does it mean to have contrast?

  • The color scheme is aesthetically pleasing 
  • The color scheme uses a range of different colors (CORRECT)
  • The color scheme is monotone
  • The color scheme is uniform

22. An analyst works with Tableau to analyze sales data for a retail company. They select outliers in the data, such as unusually high or low inventory levels, which may indicate errors or fraudulent activity. What tool do they use to select these data points?

  • Radial 
  • Rectangular 
  • Lasso (CORRECT)
  • Pan 

23. You use Tableau for an analysis project about cheese-tasting preferences. You drag the Cheese Type field onto a shelf, selecting the specific cheese type cheddar. This enables you to visualize a subset of the data that is relevant to your analysis. What menu are you using in this scenario?

  • Attributes
  • Filters (CORRECT)
  • Dimensions
  • Formats

24.  Fill in the blank: A data professional uses Tableau’s _____ tool to horizontally and vertically shift their perspective of a large map in order to better view the data about a specific smaller region.

  • Lasso
  • Pan (CORRECT) 
  • rectangular
  • radial

25. Which of the following statements accurately describe key design principles for creating data visualizations? Select all that apply.

  • Using orientation effectively requires being considerate of what colors mean to different people.
  • A key color principle is using color consciously and meaningfully. (CORRECT)
  • Choosing the right visual involves considering which graphic will be most effective for your audience. (CORRECT)
  • Optimizing the number of elements might include choosing to plot fewer lines. (CORRECT)

26. By default, all visualizations created using Tableau Public are available to other users. What icon can be clicked to hide a visualization? 

  • Eye (CORRECT)
  • Private
  • Source
  • Lock

27. A data team uses Tableau to create a line chart of financial data, with the ability to filter by company, industry, and time period. This enables financial analysts to view how companies are performing relative to their peers and the overall market. What type of visualization are they using?

  • Infographic
  • Static
  • Interactive (CORRRECT)
  • Public

28. Fill in the blank: A diverging palette is a color theme that displays two ranges of data values using two different hues, with color intensity representing the _____ of the values.

  • Magnitude (CORRECT)
  • attributes
  • purpose
  • origination

29. You use Tableau to analyze bird migration. You drag the Bird Species field onto a shelf, selecting the specific species American robin. This enables you to focus on only the data that is most helpful for your analysis. What menu are you using in this scenario?

  • Dimensions
  • Formats
  • Attributes
  • Filters (CORRECT)

30. Which of the following statements accurately describe key design principles for creating data visualizations? Select all that apply.

  • Using orientation effectively requires selecting inclusive color scales that make sense for everyone viewing them. 
  • A key color principle is keeping color consistent throughout the visuals. (CORRECT)
  • Optimizing the data-ink ratio entails minimizing elements such as boxes around legends and use of shadows. (CORRECT)
  • Optimizing the number of elements might include using hue to emphasize important lines. (CORRECT)

31. A data analyst uses Tableau Public to create a data visualization. They are still refining the visualization and want to prevent misinterpretation by others until it is finished. Which icon should they click to keep their visualization private?

  • Lock
  • Source
  • Eye (CORRECT)
  • Private

32. A data team uses Tableau to create a heatmap of website traffic, with the ability to filter by source, time of day, and page viewed. This enables web team managers to identify the sources driving the most traffic. What type of visualization are they using?

  • Interactive (CORRECT)
  • Public
  • Static
  • Infographic

33.  Fill in the blank: A diverging palette is a color theme that displays two ranges of data values using two different hues, with color _____ representing the magnitude of the values. 

  • Intensity (CORRECT)
  • borders
  • overlays
  • markers

34. While designing a city map in Tableau, you use a color scheme with high contrast among the different districts to ensure they are easy to distinguish for people with color vision deficiencies. What does it mean to have contrast?

  • The color scheme is aesthetically pleasing 
  • The color scheme is monotone
  • The color scheme is uniform
  • The color scheme uses a range of different colors (CORRECT)

35. An analyst works with Tableau to analyze customer data for an online retailer. They select specific behavior patterns, such as average order value, purchase frequency, and product preferences. What tool do they use to select these data points?

  • Lasso (CORRECT)
  • Rectangular 
  • Radial 
  • Pan

36. Fill in the blank: A data professional uses Tableau’s _____ tool to horizontally and vertically shift their perspective of a line chart about the stock market in order to better view any unusual spikes or drops in stock prices.

  • lasso
  • rectangular
  • pan (CORRECT)
  • radial

37. A data analyst is in the middle of designing a visualization in Tableau Public. As it is a work in progress, they want to keep the visualization private from other users until it is complete. Which icon will enable them to do so?

  • Lock
  • Eye (CORRECT)
  • Private
  • Source

38. An analyst works with Tableau to analyze highway traffic data. They select specific time periods and routes, then analyze the corresponding traffic patterns. What tool do they use to select these data points?

  • Radial 
  • Rectangular 
  • Pan 
  • Lasso (CORRECT)

39. While designing a pie chart in Tableau, you use a color scheme with high contrast among the different pie segments to ensure they are easy to distinguish for people with color vision deficiencies. What does it mean to have contrast?

  • The color scheme is uniform
  • The color scheme uses a range of different colors (CORRECT)
  • The color scheme is aesthetically pleasing 
  • The color scheme is monotone

40. You use Tableau for a project about spacecraft trajectories. You drag the Spacecraft field onto a shelf, selecting a specific craft. This enables you to monitor the trajectories that will be most meaningful to your project. What menu are you using in this scenario?

  • Filters (CORRECT)
  • Formats
  • Attributes
  • Dimensions

CREATIVE DATA VISUALIZATION WITH TABLEAU CONCLUSION

Data visualization is an indicator of data analysis and has been made easy by hosting great software tools for visualization features. Included among such tools is the filtering ability, drill-down menus, and a variety of charts through, which an analyst can use to explore the data more meaningfully.

By employing such methods, analysts can further distil insights and interpret data more directly. To explore data visualizations and learn to use Tableau effectively, join the learning experience in Coursera.

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