Sentence:  The actual <WSD>mean</WSD> of 1.07 being about halfway between 0 of complete correlation and 2.0 of no correlation , it is evident that there is a pretty fair degree of similarity in the behavior even of particular individual items of meaning as regards long-term stem displacement . 
Meaning of the word marked with <WSD> tags:  an average of n numbers computed by adding some function of the numbers and dividing by some function of n