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- Flip a coin
223.73K actions, 9.22E flips

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1.3K actions, 3.57K flips

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3.19K actions, 15.62K flips

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707 actions, 3.97K flips

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5K actions, 57.63K flips

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Flip a coin 10 times2.82K actions, 53.83K flips

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Flip a coin 100 times2.49K actions, 435.7K flips

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Flip a coin 1,000 times3.85K actions, 6.23M flips

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Flip a coin 10,000 times4.45K actions, 3E flips

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1.47K actions, 605K flips

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236.16K actions, 59.86M flips

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1.43K actions, 474.11K flips

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3.91K actions, 9.22E flips

Ocean Sky

1.18K actions, 774.23K flips

Blue Sky (movie)

NEW1.04K actions, 977.4K flips

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NEW175 actions, 90.29K flips

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NEW304 actions, 369.41K flips

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NEW513 actions, 498.24K flips

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NEW665 actions, 993.95K flips

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NEW746 actions, 2.32M flips

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NEW2.38K actions, 3.69M flips

Black

1.53K actions, 677.86K flips

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NEW428 actions, 487.49K flips

Heads vs. Tails

228.35K actions, 48.75M flips

Yes vs. No

7.66K actions, 9.89M flips

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3.22K actions, 49.87K flips

Procrastinate vs. Do It Now

1.07K actions, 252.57K flips

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969 actions, 671.79K flips

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666 actions, 517.21K flips

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527 actions, 362.61K flips

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450 actions, 709.71K flips

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355 actions, 431.8K flips

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318 actions, 181.88K flips

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227 actions, 161.3K flips

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193 actions, 275.66K flips

Coffee vs. Tea

156 actions, 93.38K flips

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155 actions, 297.38K flips

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151 actions, 135.5K flips

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143 actions, 34.6K flips

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121 actions, 370.09K flips

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120 actions, 31.21K flips

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119 actions, 160.95K flips

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108 actions, 79.51K flips

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64 actions, 154.38K flips

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(1 cent)2.91K actions, 744.54K flips

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(5 cents)314 actions, 42.23K flips

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(10 cents)327 actions, 569K flips

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(25 cents)2.55K actions, 505.96K flips

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(50 cents)553 actions, 320.76K flips

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11 actions, 78.08K flips

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2 actions, 2 flips

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7 actions, 7 flips

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28 actions, 30 flips

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5 actions, 10.01K flips

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12 actions, 12 flips

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2 actions, 17 flips

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6 actions, 759 flips

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33 actions, 20.04K flips

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8 actions, 1.01K flips

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3 actions, 3.96K flips

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36 actions, 30.04K flips

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1 action, 167 flips

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64 actions, 176 flips

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8 actions, 10 flips

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6 actions, 6 flips

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3 actions, 7 flips

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1 action, 167 flips

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6 actions, 6 flips

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15 actions, 22 flips

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29 actions, 30.03K flips

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100 actions, 50.11K flips

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30 actions, 35.06K flips

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146 actions, 146 flips

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15 actions, 11.41K flips

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5 actions, 40.17K flips

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1 action, 167 flips

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4 actions, 4 flips

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2 actions, 2.07K flips

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15 actions, 183 flips

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5 actions, 171 flips

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3 actions, 169 flips

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8 actions, 8 flips

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13 actions, 17 flips

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41 actions, 30.04K flips

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6 actions, 6 flips

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1 action, 167 flips

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15 actions, 10.58K flips

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10 actions, 60.18K flips

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(1p)67 actions, 1.07K flips

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(2p)50 actions, 31.24K flips

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(10p)10 actions, 20.01K flips

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(20p)32 actions, 99.01K flips

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(50p)81 actions, 121.07K flips

One pound

(£1)418 actions, 220.44K flips

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(£2)136 actions, 70.14K flips

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505 actions, 22.74K flips

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(Nritya Mudra Series)65 actions, 21.17K flips

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3 actions, 335 flips

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(Nritya Mudra Series)11 actions, 34.22K flips

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13 actions, 1.01K flips

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(2009-2010)13 actions, 30.01K flips

10 rupees

62 actions, 90.06K flips

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12 actions, 20.01K flips

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5 actions, 10.35K flips

50 paises

37 actions, 70.06K flips

- HOME
- Flip a Coin Column
- Heads or Tails: What to Know Before Choosing a Side

Should I pick heads or tails? This is a simple yet very interesting question. The coin toss isn’t as straightforward as you would imagine because there are many elements involved.

In a perfect world, the odds are 50/50, meaning that neither side has an advantage as the outcome is supposed to be equal for both. In the real world, however, the environment isn’t always optimal and you can never have perfect conditions.

In a coin toss, variables such as the motion of the thumb and the weight distribution of a coin can create a bias towards one side. Let’s explore if these variables are significant enough to truly influence the outcome of a coin toss.

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Have you ever seen a perfect coin toss? Or rather, how can we tell if a coin has flipped flawlessly?

We can never truly know because each person has a different way of tossing a coin, even when following the same method. According to researcher Persi Diaconis, when a coin is tossed by hand, there is a 51-55% chance it lands the same way up as when it was flipped.

This is because depending on the motion of the thumb, the coin can stay up on the side it started on before it starts to flip.

Another scenario is that the coin may look like it’s flipping but it’s actually spinning, thus also reducing the number of flips. In other words, the fewer the flips, the more likely it will land on the same side facing up before the toss.

In this case, whether it be heads or tails, pick the side facing up. However, if you’re going to perform the toss, don’t purposely limit the number of flips because that would be cheating!

Grab a coin right now and feel it, do both sides feel the same? In many coins, one side is heavier than the other. Therefore, when the coin is spun on a flat surface, it tends to land with the lighter side facing upwards.

This unequal weight distribution occurs because the design of the heads is usually more detailed than the tails. For instance, on the US penny, the side with Lincoln’s head is heavier, and when spun it has a higher probability to land tails up. To reduce this bias, make sure to catch the coin since it will most likely spin if you let it hit the ground.

Either way, keep in mind that a greater tendency towards tails does not mean that the coin will always land tails up!

Did a magician just challenge you to a coin toss? If you ever find yourself in a situation involving a coin toss with a magician, always be careful.

Magicians tend to shave the edges of a coin to make one side heavier than the other. This means that their coins are heavily biased towards landing with the lighter side up. They could also trick you into thinking that the coin is flipping when it’s actually spinning. In this situation, make sure to use a coin that hasn’t been tampered with!

As much as you can take advantage of certain biases, they can also work against you. Therefore, it may be better to try to reduce them altogether. Here are some small things you can keep in mind before a coin toss.

- Make sure the coin is not too old or worn out. A coin with degraded material will impact the weight distribution as well as how smoothly it flips.
- Watch out for the weather. Don’t perform a coin toss when it’s too windy or when it’s raining. This can make the coin flip in abnormal ways.
- Make sure your hands aren’t too sweaty or too dry. This can negatively impact the motion of your thumb when you try to flip the coin.

There is no straightforward answer on whether you should pick heads or tails. It’s usually on a case by case basis, and even then, you still need to rely on luck.

Remember that the coin toss is all about probability, and even if the odds to win are 99%, you could easily be in the unlucky 1%.

Always know that there are risks involved, so strategize carefully and consider as many variables (motion of your thumb, weight distribution, design of the coin, magicians etc.) as possible before choosing a side in a coin toss.

- https://phys.org/news/2009-10-tails-key-variables.html
- https://www.mercurynews.com/2009/10/16/heads-or-tails-it-depends-on-how-you-flip-it/
- https://www.dailymail.co.uk/news/article-2241854/What-odds-New-study-shows-guessing-heads-tails-isnt-really-50-50-game.html
- https://www.theguardian.com/sport/2018/dec/11/the-spin-hope-coin-toss-big-bash-cricket
- https://chatnewstoday.ca/2018/05/03/think-a-coin-toss-is-a-5050-shot-think-again/
- https://www.numerade.com/ask/question/magicians-often-shave-the-edge-of-a-coin-to-make-it-biased-towards-heads-or-tails-when-it-is-spun-the-shaving-is-slight-or-shallow-enough-to-remain-undetectable-by-the-naked-eye-shaving-the–52807/
- https://mathtourist.blogspot.com/2011/02/penny-bias.html