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Correlation coefficient between two constants
fine-structure constant
Numerical value
7.297 352 5693 x 10
-3
Standard uncertainty
0.000 000 0011 x 10
-3
Relative standard uncertainty
1.5 x 10
-10
Concise form
7.297 352 5693(11) x 10
-3
Source: 2018 CODATA
recommended values
Definition of
uncertainty
Correlation coefficient with
any other constant
 
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