Taking Mean for several elements of a list [duplicate]

i have the following question: Let us assume we have the following list:

list={1.1,1.2,1.0,2.1,2.2,2,0,3.1,3.0,3.2}


I need a function that always takes three values of this list and put the Mean of these three values into a new list so I want to end with:

list2={1.1,2.1,3.1}


How can i do this easily?

Edit: Thank you very much

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marked as duplicate by Mr.Wizard♦May 30 '14 at 9:24

Mean/@Partition[list,3]

In the example you've given, there's a stray $0$ which I think you may have missed.