Question

Hal is conducting an experiment where he flips a two-sided coin 3 times. How many different combinations of outcomes could the experiment have?

Answer 1

Let H represent an outcome of heads and T represent an outcome of Tails
.
For three tosses of the coin all the possible outcomes are:
.
H-H-H
T-H-H
H-T-H
H-H-T
T-H-T
T-T-H
H-T-T
T-T-T
There are 8 combinations.
Hope this helps!