Yes, this is possible however, only with a workaround using the macro language.
You can read the results you measured in the results table into an array
a1 = newArray();
a1 = Array.concat(a1,getResult("Mean", i));
and then using
Plot.create("Title", "X-axis Label", "Y-axis Label", xValues, yValues)
omitting the xValues will result in a plot you desire.
Plot.create("Average intensity", "ROI #", "Means", a1)
This should work