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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.
1:6 * * * * * No. It is 10/32 = 5/16
.5 or 1/2
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.
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%
The sample space when flipping a coin is [heads, tails].
.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.