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None, since that would imply that in 18 cases the coin did not show heads or tails!
Heads - ½ Tails - ½ There are two reasonable outcomes of flipping a coin. You could get heads or tails. Some might argue that the third outcome is that the coin will land on the edge.
They are HHT, HTH, THH and HHH.
.5 or 1/2
1:6 * * * * * No. It is 10/32 = 5/16
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.
The sample space when flipping a coin is [heads, tails].
Every time you flip a coin it has a 50% chance of heads and a 50% chance of tails. Flipping a coin multiple times does not change that. Therefore the answer is 50%
.125
1/4
p(heads)= 0.5 p(heads)^4= 0.0625
i got 1/941192
9:5
The probability of flipping Heads on a coin is 1 - a certainty - if the coin is flipped often enough. On a single toss of a fair coin the probability is 1/2.
The event is that the coin lands with the Heads on top.
You still still have a 1:2 chance of getting heads regardless of the times you flip.