What is the probability of getting at least one head when tossing 2 coins?

To determine the probability of getting at least one head when tossing two coins, we first examine all the possible outcomes of tossing two coins. When tossing a coin, there are two possible results: heads (H) and tails (T). Therefore, when you toss two coins, the outcomes can be summarized as:

1. HH (both heads)

2. HT (first head, second tail)

3. TH (first tail, second head)

4. TT (both tails)

This gives us a total of four equally likely outcomes. Now, we are interested in the scenarios where we get at least one head. The outcomes that satisfy this condition are:

• HH

• HT

• TH

Thus, out of the four outcomes, three outcomes include at least one head. The probability is calculated by taking the number of favorable outcomes (which is three) divided by the total number of outcomes (which is four):

Probability = Number of favorable outcomes / Total outcomes = 3/4.

This means that the probability of getting at least one head when tossing two coins is indeed 3/4.

The reasoning for the other answer options can be noted. The option that states 1/4 represents the probability of getting no heads at all