AVG returns the average value of the elements in an array.
function AVG(X, Y [, ...]: Number): Number;
For example, AVG(2, 4, 9)=5
SUM returns the sum of the elements in an array.
function SUM(X, Y [, ...]: Number): Number;
For example, SUM(2, 4, 9)=15
COUNT returns the number of parameters in an array.
function COUNT(X, Y [, ...]: Number): Number;
For example, COUNT(2, 4, 9)=3
MAX returns the greater of numeric values.
function MAX(X, Y [, ...]: Number): Number;
For example, MAX(2, 4, 9)=9
MIN returns the lesser of numeric values.
function MIN(X, Y [, ...]: Number): Number;
For example, MIN(2, 4, 9)=2