Scatter chart measure

Hello, 

I have two measures (selected item size and average item size) that I would like to use to create a visual like below, where the left bubble is selected item size and right bubble is average item size. 

I think may be possible using the scatter chart by creating a table like below, setting column1 as X axis and column2 as size. 

Is there a way for me to make the above table as a measure?