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Be wary if a friend offers to flip a coin to determine who buys the next round in the pub, or your husband suggests it as a way of allocating the nastiest household chores this weekend.Because though the simple and apparently random method of tossing a coin to help make a decision has been used for centuries, scientists have now discovered that it is surprisingly easy to manipulate the odds of a coin landing the right way up.Practising for just five to ten minutes can vastly improve your odds of making the right call, the researchers found..action_button.action_button:active.action_button:hover.action_button:focus.action_button:hover.action_button:focus .count.action_button:hover .count.action_button:focus .count:before.action_button:hover .count:before.u-margin-left--sm.u-flex.u-flex-auto.u-flex-none.bullet. All of the participants managed to get the coin to land heads-up more than half the time, while one particularly adroit flipper achieved a heads-up 68 per cent of the time.
Tell your date to pick a number between 1 and 20: Whatever number they pick is the number of turns you have to take.Some coins are not perfectly shaped - and therefore, with practice, can be made to land on one side more often than the other.For example, when the Belgian euro was introduced in 2002, statisticians claimed that it had been minted asymmetrically, with the pattern heavier on one side than the other, making it more likely to land heads-up.This means, of course, that when you catch it in the palm of your hand, it will always be the same way up as it was when you flipped it.The technique is to hold the coin on your index, ring and middle fingers.
Also, when spun on a hard surface, it landed heads-up 56 per cent of the time.