The probabilty of you flipping 3 coins and getting all heads or tails is 0.125 or 1/8.
The probability of the coin coming up heads each time is 1/8; likewise for 3 tails. The probability of getting 2 heads and 1 tail (in any order) or 2 tails and 1 head, is 3/8. There are lots of other events whose probability can be calculated when a coin is tossed 3 times, but the question doesn't specify what event is to have its probability calculated.
The probability is 1/4
The outcomes are: heads, tails, tails or tails, heads, tails or tails, tails, heads. You can see that there are 3 possible outcomes with exactly 1 head.
There are 4 events: 3 heads, 2 heads 1 tail, 1 head 2 tails, and 3 tails.
2 tails grow
Pr(At least one head in three tosses) = 1 - Pr(No heads in three tosses) = 1 - Pr(Three tails in three tosses) = 1 - (1/2)*(1/2)*(1/2) = 1 - 1/8 = 7/8 or 0.875 or 87.5%
The probability of flipping three tails with three coins is (1 in 2)3 or 1 in 8 or 0.125.
1/4
1/2 x 1/2 x 1/2 = 1/8 or 0.125 also 12.5%
Probability of tails on each toss = 1/2Probability of tails on 3 consecutive tosses = (1/2) x (1/2) x (1/2) = 1/8Probability of NOT 3 consecutive tails = (1) minus (probability of 3 consecutive tails) = 7/8 = 87.5%
It is 1/8.