Fig. 1: Scatterplots of measured urinary concentrations for each pair (1 pair member on x-axis and 1 pair member on y-axis).
From: Influence of living in the same home on biomonitored levels of consumer product chemicals

Note the logarithmic scale. 1:1 line shown. Point shapes indicate whether both values were above the MRL, one value was above and one value was below the MRL, or both were below the MRL. Values below the MRL are plotted at the MRL. Kendall’s tau beta correlation estimates in parentheses. Asterisks indicate a significant correlation (p < 0.05).