Arithmetic mean formula: Definition The arithmetic mean of a set

Definition The arithmetic mean of a set of observed data is equal to the sum of the numerical values of each observation, divided by the total number of observations. Symbolically, for a data set consisting of the values , the arithmetic mean is defined by the formula: [2] Guide to what is Arithmetic Mean. Here, we explain the concept with its formula, examples, vs geometric mean, merits, demerits & uses. Arithmetic mean is calculated by adding all the numbers in a given set and then dividing by the total number of items within that set. Learn different arithmetic mean formulas used for different types of data. Sum of all of the numbers of a group, when divided by the number of items in that list is known as the Arithmetic Mean or Mean of the group. For example, the mean of the numbers 5, 7, 9 is 4 since 5 + 7 + 9 = 21 and 21 divided by 3 [there are three numbers] is 7.