Coin Toss Probability Calculator
This is equivalent to saying (2 or 3) heads
List out ways to flip 2 heads and 1 tail
HHTHTH
THH
List out ways to flip 3 heads and 0 tail
HHHCalculate each coin toss sequence probability:
Calculate the probability of the following coin flip
HHT
Coin Toss Probability Formula
Probability of each coin toss is 1/2, so we have:
| P(HHT) = | 1 x 1 x 1 |
| 2 x 2 x 2 |
| P(HHT) = | 1 |
| 8 |
P(HHT) = 0.125
Calculate the probability of the following coin flip
HTH
Coin Toss Probability Formula
Probability of each coin toss is 1/2, so we have:
| P(HTH) = | 1 x 1 x 1 |
| 2 x 2 x 2 |
| P(HTH) = | 1 |
| 8 |
P(HTH) = 0.125
Calculate the probability of the following coin flip
THH
Coin Toss Probability Formula
Probability of each coin toss is 1/2, so we have:
| P(THH) = | 1 x 1 x 1 |
| 2 x 2 x 2 |
| P(THH) = | 1 |
| 8 |
P(THH) = 0.125
Calculate the probability of the following coin flip
HHH
Coin Toss Probability Formula
Probability of each coin toss is 1/2, so we have:
| P(HHH) = | 1 x 1 x 1 |
| 2 x 2 x 2 |
| P(HHH) = | 1 |
| 8 |
P(HHH) = 0.125
Calculate final probability:
| P(3 coin tosses with at least 2 heads) = | 1 + 1 + 1 + 1 |
| 8 |
| P(3 coin tosses with at least 2 heads) = | 4 |
| 8 |
Our fraction portion is not reduced down completely. Using our GCF calculator, we see the Greatest Common Factor (GCF) of (4 and 8) is 4
Reducing top and bottom by 4, we get:
| P(3 coin tosses with at least 2 heads) = | 1 |
| 2 |
Final Answers
P(3 coin tosses with at least 2 heads) = 0.5

What is the Answer?
P(3 coin tosses with at least 2 heads) = 0.5
How does the Coin Toss Probability Calculator work?
Free Coin Toss Probability Calculator - This calculator determines the following coin toss probability scenarios
* Coin Toss Sequence such as HTHHT
* Probability of x heads and y tails
* Probability of at least x heads in y coin tosses
* Probability of at least x tails in y coin tosses
* Probability of no more than x heads in y coin tosses
* Probability of no more than x tails in y coin tosses
* (n) Coin Tosses with a list of scenario results displayed
* Monte Carlo coin toss simulation
This calculator has 7 inputs.
What 2 formulas are used for the Coin Toss Probability Calculator?
What 4 concepts are covered in the Coin Toss Probability Calculator?
coinA unit of currencycoin toss probabilitymonte carlo simulationa model used to predict the probability of a variety of outcomes when the potential for random variables is present.probabilitythe likelihood of an event happening. This value is always between 0 and 1.P(Event Happening) = Number of Ways the Even Can Happen / Total Number of Outcomes
Example calculations for the Coin Toss Probability Calculator
Coin Toss Probability Calculator Video
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