Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Coin flipping
open-in-new
<p>Coin flipping, coin tossing, or heads or tails is using the thumb to make a <a href="/facts/Coin/PbMTkT2d">coin</a> go up while spinning in the air and checking <a href="/facts/Obverse_and_reverse/kquuDLDY">which side is showing</a> when it is down onto a surface, in order to randomly choose between two alternatives. It is a form of <a href="/facts/Sortition/WSWzQfzj">sortition</a> which inherently has two possible outcomes. </p>