Analytics-101 Online Practice Questions

Explanation:
The relative date filter can be used to select a range of dates relative to the current date, such as the past month, the current quarter, etc. This filter type dynamically adjusts the range based on the current system date, making it suitable for use with the TODAY () function.

Explanation:
We can use scatter plots to visualize relationships between numerical variables!
In Tableau, you create a scatter plot by placing at least one measure on the Columns shelf and at least one measure on the Rows shelf (Total 2 minimum). If these shelves contain both dimensions and measures, Tableau places the measures as the innermost fields, which means that measures are always to the right of any dimensions that you have also placed on these shelves. The word "innermost" in this case refers to the table structure.



(Simple Scatter Plot)



(Matrix of Scatter Plots)
A scatter plot can use several mark types. By default, Tableau uses the shape mark type. Depending on your data, you might want to use another mark type, such as a circle or a square. For more information, see Change the Type of Mark in the View.
To create a scatter plot, follow the steps below:



Reference: https://help.tableau.com/current/pro/desktop/en-us/buildexamples_scatter.htm

Explanation:
The beauty of context filters is that according to Tableau's Order of Operations, they are executed before Sets.



This means that based on what Region's you've selected - Tableau will first only preserve the rows for those Regions. THEN, after this it will compute the Set, i.e, Bottom 10 products in each Region.
1) First let's create a set to compute the Bottom 10 Products by Profit.



2) Next, take region on the Rows Shelf followed by the Set we just created. Drag Region and the Set to the Filters Shelf as well.



3) Now, try to only visualize the data for the South Region:



4) The problem right now is that Tableau is computing the Set first (Bottom 10 Products), and then applying the Dimension Filter - South Region and hence these values are incorrect. Note how these aren't even 10 products, but rather just 8. To fix this, simply add Region to Context:



Upon doing this, we get the correct answer as:



Reference:
https://help.tableau.com/current/pro/desktop/en-us/order_of_operations.htm
https://help.tableau.com/current/pro/desktop/en-us/filtering_context.htm

Explanation:
When we create a reference line, we get the following 3 options for the scope:



Reference: https://help.tableau.com/current/pro/desktop/en-us/reference_lines.htm

Explanation:
You can use a story to present a data narrative to lead your audience to your conclusions, or to assemble a sequenced analysis to share with collaborators. A story is a sequence of visualizations that work together to convey information. You can create stories to tell a data story, provide context, demonstrate how decisions relate to outcomes, or to simply make a compelling case4