Bar and bat mitzvah mean, literally, son and daughter of the commandment.. Bat mitzvah is Hebrew, while bar mitzvah, historically a much earlier ceremony, is Aramaic. The word bar is the Aramaic equivalent of the Hebrew ben (son of) .
In math, the mean is the average of a set of numbers. To determine the mean, add all numbers in a set and take this answer and divide it by how many numbers are in the set. Continue Reading.
Mean,Median,Mode and Range Definitions and Examples. 1  Mathematical âMEANâ means Average it can be a small data like average of marks of students in a class or it can be large data like the average height of Chinese adult male population, so mathematics has developed methods to handle all this and I shall show you how.