Mean(), Avg()

Computes the mean (average) of the elements of an array.

avg_value = Mean(array data_values)

Argument	Contents
data_values	An array of numbers

A real number equal to the mean of the elements of data_values.

Can also be called as Avg().
The array must contain numbers only. Other types, including null, are not allowed.

Error Type	Meaning
Error	The array contains values that are null or are not numbers