Answer:
50%
Step-by-step explanation:
The chances are
3 tails
2 tails 1 head
1 tail 2 heads
3 heads
Only 2 out of 4 of the chances shows two heads. (1 tail 2 heads and 3 heads which has 2 heads)
2:4 is 50:100
And 50:100 is [tex]\frac{50}{100}[/tex], which is 50%
