Probability Help

[mrhexxx]

This may seem super simple but I am not able to remember how to calculate this.

Question:

List 1: 23 items
List 2: 13 items
List 3: 27 items

How many different possibilities are there when choosing 1 from each list. Each item in the each list is unique.

 

[pka]

Question:
List 1: 23 items
List 2: 13 items
List 3: 27 items
How many different possibilities are there when choosing 1 from each list. Each item in the each list is unique.

Assuming that it means that there are sixty-three unique items.
Find the number of ways to select one item from each list an multiply the three numbers together.

 

[StatsSolver]

You can use combinations for each list.

 

[pka]

You can use combinations for each list.

Well of course! But why would anyone do that?

[imath]\dbinom{23}{1}=23[/imath].​