Ans.

Probability of getting a head or tail when tossing a coin:

When you toss a fair coin, there are only two possible outcomes: heads or tails. Therefore, the probability of getting a head or tail is always 1.

Explanation:

1. What is probability?
Probability is a measure of the likelihood of an event occurring. It is a number between 0 and 1, where 0 represents the event is impossible and 1 represents the event is certain to happen.

2. Tossing a coin:
When you toss a coin, it can only land in one of two ways - either heads (H) or tails (T). These are the only possible outcomes of the coin toss.

3. Possible outcomes:
The possible outcomes of a coin toss are mutually exclusive, which means that both heads and tails cannot occur at the same time. Therefore, the probability of getting a head or tail is the sum of the probabilities of getting a head and getting a tail.

4. Equally likely outcomes:
Assuming the coin is fair, each outcome (head or tail) is equally likely to occur. This means that the probability of getting a head is the same as the probability of getting a tail.

5. Probability of getting a head:
Since there are only two possible outcomes and they are equally likely, the probability of getting a head is 1/2. This can be represented as a fraction, decimal, or percentage: 1/2, 0.5, or 50%.

6. Probability of getting a tail:
Similarly, the probability of getting a tail is also 1/2 or 0.5, since it is equally likely to occur as getting a head.

7. Probability of getting a head or tail:
As mentioned earlier, the probability of getting a head or tail is the sum of the probabilities of getting a head and getting a tail. Therefore, 1/2 (probability of getting a head) + 1/2 (probability of getting a tail) = 1.

So, the correct answer is option C) 1/2.