# How do you calculate cumulative probability? If one tosses a coin 3 times, what are the odds that 1 toss will be "heads"?

##### 1 Answer

Dec 2, 2017

#### Explanation:

There are two ways I can think of:

**Method 1**

In order to have exactly one head in three rows, it means the other two throws are tails. Consider how this could happen:

The 'head could be on the first, second, or third throw.

**Method 2**

Write down all the

Of the