The sum of items divided by the number of items is the

The sum of items divided by the number of items is called the mean. The mean is a type of average that is commonly used to describe a set of data. To find the mean, you add up all the values in the set and then divide by the total number of values. For example, if you have a set of three numbers - 2, 4, and 6 - the sum of these numbers is 12. Dividing 12 by 3 (the number of items) gives you a mean of 4. This means that the average value in this set of numbers is 4. The mean is a useful tool for summarizing data because it gives you an idea of what the typical value in a set of numbers is.