definition mean math
Definition of Mean. Mean of a set of numbers is the sum of the numbers divided by the number of items in the list. Mean of a set of n numbers a1, a2, a3, ..., an is given by.
Mathematics (from Greek Î¼Î¬Î¸Î·Î¼Î± mathÄma, âmÃ¡thÄma, knowledge, studyâ) learning is the study of topics such as (quantity), numbers, structure, space and. change