To determine the probability of getting exactly 1 head when flipping a coin 3 times, we need to consider the total possible outcomes and the successful outcomes for our case.
When flipping a coin, each flip has two possible outcomes: heads (H) or tails (T). Thus, when flipping the coin 3 times, the total number of possible outcomes is:
- Number of Outcomes = 23 = 8
The possible outcomes when flipping a coin 3 times are:
- HHH
- HHT
- HTH
- THH
- HTT
- THT
- TTT
- TTH
Next, we need to find out how many of these outcomes result in exactly 1 head:
- HTT
- THT
- TTT
- TTH
From the outcomes listed, we can see that there are 3 combinations where we get exactly 1 head (HTT, THT, TTH). This gives us:
- Successful Outcomes = 3
Now we can calculate the probability using the formula:
Probability = (Number of Successful Outcomes) / (Total Possible Outcomes)
Substituting the values we found:
Probability = 3 / 8
Thus, the probability of getting exactly 1 head when flipping a coin 3 times is:
3/8 or 0.375
In conclusion, every time you flip a coin 3 times, you have a 37.5% chance of getting exactly 1 head!