



 
Hi Darren. How many different groups of 6 people can you choose from 12 people? Same question. We are looking at groups, so this is a "combinations" question. In maths, we would there are a few different notations that are used. You may be familiar with any of these, which all mean the same thing:
n is the total number of items from which you are choosing and k is the number of items you are choosing. So for your question, you need to calculate _{12}C_{6 }. The formula for such combinations uses factorials (designated with an exclamation point ! ). Here is the formula: So the answer to your question is the value:
Hope this helps,  


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