The simple definition of a mean is that of a numeric quantity which represents the center of a collection of numbers. Here the trick lies in defining the exact type of numeric collection, as beyond ...

The study was conducted to (a) determine the development of children's understanding of seven properties of the arithmetic mean and (b) assess the effects of the material used in the testing ...

In the first part the property of "minimum error", proved by Fisher for the estimates based on the powers of the deviations from the mean, is extended to the estimates based on the powers of the ...