3 To make a graphic representation on the blackboard of the "frequency 

 distribution" of the statures for the members of a group, enter a bar or stroke for 

 each individual corresponding to his height-class. Plot along the horizontal base 

 line spaces about 3 inches wide, say, for each inch of height (60-61, 61-62, etc.). 

 For each person having each specified height, mark off an inch space above the 

 base line. 



In each column the spaces marked off correspond to numbers of individuals. 

 The diagram shows that there are more of one stature than of another. It enables 

 us to determine at a glance (a) what statures are most frequent or least frequent; 

 (b) the median height; (c) the proportion of individuals having nearly median 

 height; (d) the extreme range of statures in the group; (e) what the distribution 

 is among the four quarters. 



QUESTIONS 



1 In what ways do individuals of your acquaintance resemble one another .f' 

 differ from one another? 



2 How can we measure the differences or resemblances among individuals.'' 



3 In what ways are differences important to us personally.'^ 



4 How do we get our ideas as to what is normal for people.? 



5 Wherein does the individuality of a particular person consist .f" 



6 What are the sources of the differences among individuals .f* 



7 In what kinds of society have the individuals who differ widely from the 

 norm greatest opportunity to use these differences to the full? In what kinds of 

 society have such individuals least opportunity? 



8 In what ways is it an advantage to a group to have people differ from 

 one another? a disadvantage? 



9 What evidence would be necessary to prove that some other race is su- 

 perior to our own? 



10 What evidence would you consider sufficient to prove that our race is 

 superior to some other? 



75 



