Thirty coins.
The outcomes are: heads, tails, tails or tails, heads, tails or tails, tails, heads. You can see that there are 3 possible outcomes with exactly 1 head.
tails
chainsaw its head off
The probability of 2 coins both landing on heads or both landing on tails is 1/2 because there are 4 possible outcomes. Head, head. Head, tails. Tails, tails. Tails, heads. Tails, heads is different from heads, tails for reasons I am unsure of.
The tails side is the side without the head on it.
The opposite of tail is head!
A penny.
a quarter
It is known that phospholipd has a head and two tails. The head would be spherical, and the tails similar to those of spermatozoid but not so long and thin.
2 tails grow
Theoretical is 50% Heads, 50% tails: 30-Heads, 30-Tails (theoretical)
Nope, just a head