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.
48
The odds that a tossed coin will land tails side down remain one in two no matter how many times the coin has previously been tossed.
Out of the 16 possible outcomes for a coin tossed four times, 4 of them result in 3 Tails & 1 Head. They are: TTTH, TTHT, THTT, and HTTT.
The probability is 1/4
3 out of 8
48
The odds that a tossed coin will land tails side down remain one in two no matter how many times the coin has previously been tossed.
It is 0.3125
Since a coin has two sides and it was tossed 5 times, there are 32 possible combinations of results. The probability of getting heads three times in 5 tries is 10/32. This is 5/16.
If a coin is tossed 15 times there are 215 or 32768 possible outcomes.
Out of the 16 possible outcomes for a coin tossed four times, 4 of them result in 3 Tails & 1 Head. They are: TTTH, TTHT, THTT, and HTTT.
1 and a half
The probability is 1/4
3 out of 8
Eight.
The odds are 50/50. A tossed coin does not have a memory.
The number of times a coin is tossed does not alter the probability of getting heads, which is 50% in every case, as long as the coin has not been rigged (i.e., a double-headed coin, a weighted coin) to alter the result.