HagCtEkty : Study ix Arithmetic 



433 



the table is obtained by adding the medians for the twenty cities 

 and di^dding by 20. By this method each city is considered a 

 unit, whatever the ninnber of pupils. The individual average is 





■ 1 1 ' ^ ' i I ' 









i ■ 





1 ' ' 1 ' i ' 1 ' 



I 1 1 





: ' ; 1 



1 — 



10 



- 1 i ' i ' i 1 ' 



i i ' 



10 



1 



i5l3i 



1 



9 



j j j 1 ' J ' ' I 









' DETROIT 

 **-**CITY 













1 INT>rvTI/L'.\L 



8 





;-' 



■ 



1*1 



1 

 1 



1 



• COTHTLS 



























DETROIT 













BOSTOV 



6 



i"T~"!'T-l"V"T"l"'r 1 



1 1 1 1 1 • ' 





- — 



-j-L;— 



JCOTRTIS 



RIGHTS 

 5 



ill'!' > < 1 











4 



11 ' 1 ' I I ' ' 











3 



1 I 1 1 1 1 i I ' 



1 ' 1 1 ! I ' ! ' ' 







i ' 



; 



2 



1 1 1 ' 1 1 ' 1 ! 

 1 1 ' ' ' I 1 ' 



, 1 1 1 1 ; I 1 1 1 











1 



1 ' ' ' 1 1 III I 



1 1 1 1 ; , ' 1 1 1 

 1 1 1 ■ 1 ! 1 ■ ' > 













i - • 1 1 1 ! ' ' ' ' 

 113 '71 i:: 595 :: 103 6:> 167 ,%so 60' 



160 



'3436' 122 



124 1 





300 



FIG. 1- XEPIAXg GRAD7, 7 



1000 

 SERIES 



B 



DrvTSIOX 



1500 



obtained by adding the individuals regardless of city and finding 

 the median of all. 



Comparing the individual median with other available stand- 

 ards, namely. Courtis general standard and the Detroit and Boston 



4—3102 



