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The mean is when you calculate the sum of a list of numbers and then you didvide by the number of numbers in the list.
No. The maximum minus the minimum is the range. The mean is the sum of all elements of the list divided by the size of the list.
the median and mode are but the mean is not
Magic
The fact that zero is one of the numbers in a list that you want to find the mean for doesn't make it any different to workout than a mean problem without the number zero. Just add up all of the numbers and then divide that number by how many numbers are in your list.