Pearson coefficients distributions from the error-accommodation method. Each graph shows R distribution for parameters of adjacent planets, which were tested for linear correlation by running 10⁵ random uniform simulations. From left to right the correlation is calculated for radii, masses, densities of adjacent planets in pairs and period ratios in triples. The blue dash-dotted and black dashed lines indicate mean and median values, respectively. The solid blue line indicates the best-fitted probability density function (PDF) of the normal distribution. The y-axis shows the probability density (the probability per unit on the x-axis).