Question

The list below shows all of the possible outcomes for flipping four coins.

Answer 1

Each one has two possibilites, so the total is 2*2*2*2 = 16

Explanation:

TTTT

TTTH

TTHT

TTHH

THTT

THTH

THHT

THHH

HTTT

HTTH

HTHT

HTHH

HHTT

HHTH

HHHT

HHHH

If you eliminate the duplicates, ie, the coins are identical, you get 4

TTTT

TTTH

TTHH

THHH

HHHH