ABSTRACT
The term diversity is usually synonymous of “variety” and is simply an in-
dication of the number of different ways a characteristic is present in a group of elements, taking in account the total of elements with each value of the charac-
teristic. For example, we often speak of a “diversity of opinions”. While simply
accounting for the number of different types of opinions on a topic one can give a rough idea of the “diversity of opinions;” the total of people with the same
opinion must be taken into account to get the true sense of the diversity.