Statistical Calculators
Coinflip Probability Calculator
Use this free tool to figure out the odds of a coin flip.
coinflip probability calculator
Probability
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Table of contents
| ◦Probability |
| ◦Tossing a Coin |
| ◦Is a coin toss really fair? |
| ◦Coin tossing is the technique |
| ◦A Study on Coin Tosses |
Probability
Simple explanation: how likely is for something to happen.
Many events cannot be predicted with 100% certainty. We can only predict how likely they will occur using the concept of probability.
In general, probability of an event equals the number of possible outcomes.
Classical probabilities problems often require you to find out how often one outcome happens versus the other and how future events will affect that outcome. The formula, which is similar to our coin flip probability formula, states that you should consider all possible outcomes.
Probability = number of successful results / number of possible results
Tossing a Coin
There are two outcomes possible when a coin is tossed:
The probability of the coin landing H is 1/2, and the probability of the coin landing T is also 1/2.
Is a coin toss really fair?
Since the beginning of time, people have relied on a simple and well-known technique to arrive at a decision free from biases or judgments. This method doesn't require complex machines to produce a result.
To resolve an indecision, the most reliable method is to use some spare change and to toss a coin.
Coin tossing is the technique
It doesn't really need to be explained, since you have probably done at most a few of these before. But let's briefly outline what you should do when you toss your coin. Coin flipping, also known as coin tossing, involves throwing a coin in the air and choosing one of two outcomes: heads or tails. In order to reach a conclusion, each person involved in a decision chooses one of the sides. This is a common way to reach a decision (or resolve a disagreement). It is free of bias and both possible outcomes (heads and tails) are considered equally likely to occur.
Coin tossing is a common activity in daily life. However, it is also popular on official and international platforms. The result of a coin toss was regarded as an expression of divine will in ancient times. The game of coin tossing was referred to by the Romans naviga aut ("ship or the head"), while the British called the event cross and pile. Because a head or tail is the body part located at opposite ends of a person's body, it was often called 'heads' or 'tails'.
These even odds may change in regular coin tosses where normal coins are used. First, new coins almost always come with imperfections and fabrications that can affect the coin's geometry. This is just one aspect. However, it is important to think about how frequently a coin changes hands. Coins can become damaged, worn-out, or scratched during the course of their lifetime. They can even hold bacteria. These factors can, however, remove fairness at a very limited level.
There is another way to manipulate the odds. It is possible to train your fingers to flip the coin so that only the desired face appears every time you toss it. You may feel like you are having a bad luck day, but your opponent might be trained to accurately toss coins. They will take your money and, more importantly, your chances of winning a fair game.
A Study on Coin Tosses
The fairness of a coin-toss was determined by PersiDiaconis, Susan Holmes and Richard Montgomery. These results will completely change your perspective.
The experiment used motion-capture cameras and random experimentation. A "coin flipper" was also used to flip the coin at will.
These are some of their observations and inferences:
A fascinating observation was that 1 out of every 6000 coin throws will result in a coin landing on its edge, creating a coin-flipping singularity. This is possible, and it was quite famously observed on December 8, 2013, during an NFL game between the Philadelphia Eagles (NFL) and the Detroit Lions.
What are your thoughts? Is it still a good idea to toss a coin to determine who will pay for lunch?
Article author
Parmis Kazemi
Parmis is a content creator who has a passion for writing and creating new things. She is also highly interested in tech and enjoys learning new things.
Coinflip Probability Calculator English
Published: Thu Jul 21 2022
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