Figure 2.  Both the original distribution and the distribution of test data are now shown in the same figure.  The original set of reference values for serum creatinine (umol/l) represented 240 healthy adult individuals. The test data consisted of 10 creatinine values from healthy individuals.  In the graph the 10 test data values are shown below the x-axiw; the horizontal lines represent 20th, 50th, and 80th percentiles of the test data.
Distributional data of these values are shown in the data window.