The question asks about the probability of a fair coin toss resulting in either heads or tails.

For a fair coin, there are two possible outcomes: heads or tails. Since the coin is fair, the probability of each outcome is the same.

• Probability of heads = 1/2
• Probability of tails = 1/2

The total probability of the coin landing either heads or tails is the sum of the two probabilities: $P(\text{Heads or Tails}) = \frac{1}{2} + \frac{1}{2} = 1$

This makes sense because these are the only two possible outcomes when tossing a fair coin, and one of them must occur.

Would you like more details on probability or have any other questions? Here's a quick expansion of the topic:

1. What is the definition of a probability event?
2. How do you calculate the probability of multiple events happening?
3. What is the probability of an impossible event?
4. How does the fairness of a coin affect its probability?
5. What is the probability of getting heads in 3 tosses of a fair coin?

Tip: Remember, the total probability for all possible outcomes in a sample space always adds up to 1!