add c6 week2

06_visualize-data/02_creating-data-visualization-with-tableau/graded-asessment/weekly-challege-2.md

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+## Weekly challenge 2
+
+Latest Submission Grade: 100%
+
+ 
+
+### Question 1
+
+Fill in the blank: When using Tableau, people can control what data they see in a visualization. This is an example of Tableau being _____.
+
+* interpretive
+* **interactive**
+* indefinable
+* inanimate
+
+> People being able to control what data they see is an example of Tableau being interactive. 
+
+ 
+
+### Question 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**
+* The color scheme is graphically pleasing 
+* The color scheme is monotone
+* The color scheme is uniform
+
+> The data analyst makes sure the color scheme has contrast in order to make the visualization accessible for people with color vision deficiencies.
+
+ 
+
+### Question 3
+
+What could a data analyst do with the Lasso tool in Tableau?
+
+* **Select a data point**
+* Zoom in on a data point
+* Move a data point 
+* Pan across data points
+
+> A data analyst could use the Lasso tool to select a data point.
+
+ 
+
+### Question 4
+
+A data analyst is using the Pan tool in Tableau. What are they doing?
+
+* Moving a data point to another location in the visualization 
+* **Rotating the perspective while keeping a certain object in view**
+* Deselecting a data point from within the visualization
+* Taking a screenshot of the visualization
+
+> They are using the Pan tool to rotate the perspective while keeping a certain object in view.
+
+ 
+
+### Question 5
+
+You are working with the World Happiness data in Tableau. To display the population of each country on the map, which Marks shelf tool do you use? 
+
+* Tooltip
+* Detail
+* Size
+* **Label**
+
+> To display the population of each country on the map, you use the Label property.
+
+ 
+
+### Question 6
+
+When working with the World Happiness data in Tableau, what could you use the Filter tool to do? 
+
+* **Show only countries with a World Happiness score of 3.5 or lower**
+* Permanently delete countries without a happiness score
+* Reformat every country in Asia
+* Zoom out to reveal the entire world
+
+> You could use the Filter tool to show only those countries with a World Happiness score of 3.5 or lower.
+
+ 
+
+### Question 7
+
+By default, all visualizations you create using Tableau Public are available to other users. What icon to you click to hide a visualization? 
+
+* **Eye**
+* Show/Hide
+* Close
+* Source
+
+> To hide a visualization from other users, click the Eye icon.
+
+ 
+
+### Question 8
+
+Fill in the blank: In Tableau, a _____ palette displays two ranges of values. It uses a color to show the range where a data point is from and color intensity to show its magnitude. 
+
+* **diverging** 
+* overlaying
+* inverting
+* contrasting
+
+> In Tableau, a diverging palette displays two ranges of values. It uses a color to show the range where a data point is from and color intensity to show its magnitude. 

06_visualize-data/02_creating-data-visualization-with-tableau/practice-quiz-creating-visualizations-in-tableau.md

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+## L3 Create visualizations in Tableau
+
+ 
+
+### Question 1
+
+A diverging color palette in Tableau displays characteristics of values using what color combination?
+
+* Shade for the accuracy and grayscale for the reliability
+* Hue for the range and tint for the margin of error 
+* **Intensity for the magnitude and hue for the range**
+* Intensity for the range and hue for the magnitude
+
+> A diverging color palette in Tableau displays a value’s magnitude by color intensity and a value’s range by color hue. The color palette isn’t used to distinguish the accuracy or reliability of data, but you should always check that the values you use in a visualization are both accurate and reliable. 
+
+ 
+
+### Question 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**
+* Blue for the EU and gray for Australia
+* Beige for the EU and purple for Australia
+* Orange for the EU and brown for Australia
+
+> A lot of people associate green with positive results and red with negative results. Green could falsely represent a trade surplus for the EU and red could falsely represent a trade deficit for Australia. Selecting beige and purple wouldn’t lead people to these wrong conclusions.
+
+ 
+
+### Question 3
+
+How could you adjust the labels to make the following visualization more effective? Select all that apply.
+
+![img](img/european.png)
+
+Each country has statistics for family, health, freedom, and generosity
+
+* Move the labels to white space on the map
+* **Reduce the number of labels**
+* Change the font color for the labels from black to white
+* **Use a single font for the labels**
+
+> You could make the visualization more effective by reducing the number of labels per country and using only one font. Doing this makes the labels easier to read.

06_visualize-data/02_creating-data-visualization-with-tableau/practice-quiz-getting-started-with-tableau.md

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+## L2 Getting started with Tableau
+
+ 
+
+### Question 1
+
+As a business intelligence and analytics platform, Tableau enables you to do what with data? Select all that apply.
+
+* **Connect to data in databases, spreadsheets, or CSV files**
+* **Observe and understand data to make decisions**
+* **Create and share interactive dashboards with data**
+* Check and clean data in databases
+
+> Tableau enables you to observe and understand data to make decisions, connect to data in databases, spreadsheets, or CSV files, and create and share interactive dashboards with data.
+
+ 
+
+### Question 2
+
+You are comparing Tableau to Looker and Google Data Studio for your company’s data visualization needs. What feature is unique to Tableau?
+
+* Drag and drop functionality to create visualizations
+* Integration of multiple data sources
+* **Desktop version for users**
+* Connectivity to SQL databases
+
+> Tableau offers browser-based and desktop versions while Looker and Google Data Studio are strictly browser-based. Browser-based solutions are preferred by companies adopting cloud-based services while desktop solutions might be suitable for companies maintaining services on their private networks.
+
+ 
+
+### Question 3
+
+Fill in the blank: When using Tableau Public, click the Gallery tab to access _____.
+
+* **public visualizations**
+* how-to videos 
+* blog articles
+* sample data
+
+> Tableau Public’s Gallery features data visualization examples created by other Tableau Public users across the web.

06_visualize-data/02_creating-data-visualization-with-tableau/readme.md

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+## Creating data visualizations with Tableau
+
+Tableau is a tool that helps data analysts create effective data visualizations. In this part of the course, you’ll learn all about Tableau and explore the importance of creativity and clarity while visualizing your data analysis findings.
+
+ 
+
+### Learning Objectives
+
+* Identify Tableau as a data visualization tool and understand its uses
+* Explain how data visualization can allow for creativity and clarity to appropriately present findings
+* Select appropriate visuals for various presentation situations
+* Identify different types of data visualizations and their uses
+* Use multiple data sources to create a visualization
+* Discuss accessibility issues associated with data visualization

06_visualize-data/02_creating-data-visualization-with-tableau/resources.md

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+## Resources
+
+ 
+
+* [Public Tableau](https://public.tableau.com/en-us/s/) home page.
+* [Tableau Desktop](https://www.tableau.com/products/trial) free trial.
+* [Getting started with Tableau Desktop](https://help.tableau.com/current/guides/get-started-tutorial/en-us/get-started-tutorial-connect.htm).
+* [Public Gallery](https://public.tableau.com/en-us/s/viz-gallery): These are data visualizations created by other users that you can scroll through. 
+* [Featured Gallery](https://public.tableau.com/en-us/gallery/?tab=featured&type=featured): This is a collection of featured data visualizations created by other users. This is a great source of inspiration.
+* [Viz of the Day](https://public.tableau.com/en-us/gallery/?tab=viz-of-the-day&type=viz-of-the-day): Tableau Public features a new data viz every day; check back for new visualizations daily!
+* [Google Career Certificates page on Tableau Public](https://public.tableau.com/profile/grow.with.google#!/): This gallery contains all of the visualizations created in the video lessons; you can explore these examples more here. 
+* [Tableau Public resources page](https://public.tableau.com/en-us/s/resources): This links to the resources page, including some how-to videos and sample data.
+* [Tableau user forum](https://community.tableau.com/s/): Search for answers and connect with other users in the community on the forum page.