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Correlation coefficient between two constants Newtonian constant of gravitation  Numerical value  6.674 30 x 10-11 m3 kg-1 s-2  Standard uncertainty  0.000 15 x 10-11 m3 kg-1 s-2   Relative standard uncertainty  2.2 x 10-5  Concise form  6.674 30(15) x 10-11 m3 kg-1 s-2       Avogadro constant  Numerical value  6.022 140 76  x 1023 mol-1  Standard uncertainty  (exact)   Relative standard uncertainty  (exact)  Concise form  6.022 140 76 x 1023 mol-1       Correlation coefficient r of the above two quantities: r  =  0.0 Click here to select a new correlation pair Source: 2018 CODATA      recommended values  Definition of uncertainty        Correlation coefficient with any other constant