How to do it...

To implement this recipe, perform the following steps:

1. Create the following measures:

My Average = 
    VAR __Table = ALLSELECTED('R04_Table')
RETURN
    AVERAGEX(__Table,[Value])

My Average Debug = 
    VAR __Table = ALLSELECTED('R04_Table')
RETURN
    COUNTROWS(__Table) //AVERAGEX(__Table,[Value])

2. On a Report page, create a Slicer visualization and place the Color column from R05_Table in the Field area of the visualization.
3. On the same Report page, create a Card visualization and place the My Average measure in the Fields area of the visualization.
4. On the same Report page, create a second Card visualization and place the My Average Debug measure in the Fields area of the visualization.