With this Coin Flip Probability Calculator, you will learn how to calculate the probability of obtaining a random number of heads (or tails) from a random number of tosses. Also, you will learn about probability, its formula and other interesting things.

Meanwhile, if you want to calculate the probability for 3 events, check our Probability of 3 Events Calculator. Also, you can calculate the relative standard deviation value with our RSD Calculator.

Classical probability

The classical possibility is a statistical concept that measures the possibility of something happening. In a traditional sense, this means that any statistical experiment will have aspects that are equally likely to occur (equal chances of occurrence of something). As a result, the idea of classical probability is the simplest type of probability in which the probabilities of anything happening are equal.

How to calculate probability?

Determining the possibilities requires following a simple formula and using multiplication and division to calculate the possible outcomes of some events. To compute the probability, apply the procedures below, which you may apply to a variety of applications that employ a probability format:

  1. Determine a single occurrence that will result in a single consequence.
  2. Determine the total number of possible outcomes.
  3. Subtract the number of occurrences from the total number of potential outcomes.

Coin flip probability formula

We can obtain either Heads (H) or Tails (T) when we flip a coin. As a result, the sample space is S = {H, T}. Every subset of a sample space refers to it as an event. The chance of an empty set (neither Heads nor Tails) is always 0, but the probability of the entire sample space (either Heads or Tails) is always. For any other given event E (i.e., A subset of S), we can use the following formula:

P(E)=\frac{Number\; of\; elements\; in\; E} {Number \; of \; Elements \; in \; S}

P(E) – the possibility of an event

Random coin flip

Caught coins have a modest propensity to end up in the same state in which they were tossed. The prejudice, on the other hand, is relatively minor. So, whether a coin is caught in mid-air or allowed to bounce, the outcome of throwing it may be considered random.


Is a coin flip 50 50?

Most people believe that tossing a coin is always a 50/50 possibility, with a 50 percent chance of landing on heads and a 50 percent chance of landing on tails. But coin toss really isn’t 50/50 – it’s closer to 51/49.