Легке зміщення результату підкидання монети

The physical model by Diaconis, Holmes, and Montgomery and a large preregistered experiment indicate a slight tendency for ordinary human coin flips to land with the same face up as at the start. In the study of 350,757 flips, the estimate was about 50.8%, rather than exactly 50%. The effect is small and depends on flipping technique; it does not mean every coin or mechanical toss is biased in the same way.