The probability of getting a heads on the first flip is 1/2. Similarly, the probability on each subsequent flip is 1/2, since they are independent events. The probability of several independent events happening together is the product of their individual probabilities.
There are two sides to the coin, so the probability of getting heads or tails on one flip of the coin is 1/2 or 50%.
2 heads and 2 tails
The probability is 2/4 or 4/8 or 1/2. The reason is that if you have 4 identical coins and you flip all of them at once you have half a chance because you could either get all heads, all tails, or a combination.
25:75
50%.
50/50
The probability of getting a heads on the first flip is 1/2. Similarly, the probability on each subsequent flip is 1/2, since they are independent events. The probability of several independent events happening together is the product of their individual probabilities.
There are two sides to the coin, so the probability of getting heads or tails on one flip of the coin is 1/2 or 50%.
25%
2 heads and 2 tails
50% I thought that should be obvious...
You still still have a 1:2 chance of getting heads regardless of the times you flip.
For 3 coin flips: 87% chance of getting heads at least once 25% chance of getting heads twice 13% chance of getting heads all three times
6.25%
one chance in two - 50%
very low