The chances of flipping a fair coin and getting 100 heads in a row is extremely low. Each flip has a 50% chance of being heads, so the probability of getting heads 100 times consecutively is (1/2) raised to the power of 100, which is approximately 1 in 1.27 quintillion (or 1 in 2^100). This makes such an outcome highly improbable.
.5 or 1/2
As a coin has two sides, the odds are always 50-50.
The odds of getting heads on a single coin flip are 1 in 2. To find the probability of getting three heads in a row, you multiply the probability of getting heads on each flip: ( \frac{1}{2} \times \frac{1}{2} \times \frac{1}{2} = \frac{1}{8} ). Thus, the odds of getting three heads in a row when flipping a coin are 1 in 8.
None, since that would imply that in 18 cases the coin did not show heads or tails!
The probability of getting heads on a single coin flip is 0.5. To find the probability of getting heads four times in a row, you multiply the probability of getting heads for each flip: (0.5 \times 0.5 \times 0.5 \times 0.5 = 0.5^4 = 0.0625). Thus, the probability of flipping heads four times in a row is 6.25%.
The event is that the coin lands with the Heads on top.
The probability of flipping a coin 3 times and getting 3 heads is 1/2
There are 8 permutations of flipping a coin 3 times, or of flipping 3 coins one time. They are, with the permutations of two heads bolded...TTTTTHTHTTHHHTTHTHHHTHHH... thus, the probability of flipping a coin 3 times and getting 2 heads is 3 in 8, or 0.375.
.5 or 1/2
1/4
1/4
.125
As a coin has two sides, the odds are always 50-50.
The odds of getting heads on a single coin flip are 1 in 2. To find the probability of getting three heads in a row, you multiply the probability of getting heads on each flip: ( \frac{1}{2} \times \frac{1}{2} \times \frac{1}{2} = \frac{1}{8} ). Thus, the odds of getting three heads in a row when flipping a coin are 1 in 8.
The sample space when flipping a coin is [heads, tails].
The probability of this is 50%. 2/4
i got 1/941192