Question

A coin is tossed twice what is the probability of the coin landing heads up both times

Answer 1

You have 2 choices on each toss. The total number of ways you can get a result is 2*2
The successful result is 1/2 * 1/2 = 1/4.
You can make a table to show this.

H H 
T H
H T
T T

1/4 ways gives 2 heads. <<<< answer