A coin is tossed three times, the number of possible outcomes are :

1. 8

2. 6

3. 10

4. 4

When a coin is tossed, each toss has 2 possible outcomes : head (H) or tail (T).

The number of possible outcomes when a coin is tossed n times = 2ⁿ

For this case, n = 3

So, 2³ = 8

The number of possible outcomes when a coin is tossed 3 times is 8.

Hence, option 1 is the correct option.