An 'unbaised coin' is a coin which has an equal probablity of landing on either heads or tails when tossed.
Chat with our AI personalities
In two tosses: 1/4.
The probability of tossing a coin and getting heads is 0.5
There is the probability of 1/2 if it is a fair coin. There is the probability of 1 if it is a double-headed coin. There is the probability of 0 if it is a double-tailed coin.
If the coin is fair, the probability is 1/4.
The probability of the coin flip being heads or tails is 100%.