Connect to the "Life Expectancy at birth" excel file, drag Data_20th Century sheet to the canvas. If you find data columns are not correct.
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Use the data Interpreter, it will correct the data.
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Select the column 1960 to 2000. And Click on the Pivot option
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Rename the two new columns as 'Years' and 'Life Expectancy'
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Create a Union by dragging the sheet Data_21st Century to Data_20th Century, once you see the orange block for union.
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Now, select column 2001 to 2013 and Select Add data to Pivot.
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Select Country and Country Name field, Merge these fields.
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Rename the merged field as Country.
Let's create the view.
Drop the country to the Filters and Select New Zealand. Drop the years to the columns and 'Life Expectancy' to the Text marks card. Change the aggregation to Avg (it won't make a difference here).
Right-Click on Life Expectancy -> Quick Table Calc -> Moving Average
Again, right-click on it and edit the table calculation.
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Update the values as:
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Result is:
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Explanation
Create the calculated field:

Drop the carrier name to the view and % of delayed flights to text.
We only have 2013 data, so filter won't make a difference:

Explanation
Drop the year to the Columns and change it Discrete. Drop the matches played to the Rows.
Go to the Analytics menu, drop the Distribution band to the view. Select scope as entire table.
Value Computation should be:

Your view will look like this:

While creating the parameter action, it is not mandatory to specify the aggregation.
All others are true.
Refer: https://help.tableau.com/current/pro/desktop/en-us/actions_parameters.htm

Explanation
https://help.tableau.com/current/pro/desktop/enus/
bkimages_coordinates.htm#:~:text=Right%2Dclick%20anywhere%20on%20the,Annotation
%20dialog%20box%2C%20click%20OK.