HagCtErty : Study in Arithmetic 



429 



case of maxiiniiiii attempts is very much more striking. In city 

 5 no child attempted more than eight problems, wliile in city 1 one 

 child attempted eighteen problems. In city 3, 11 per cent of 

 the children attempted more problems than any of the pnpils in 

 city 5. If. instead of studying the minimum and maximum scores, 

 it is desired to see what the bulk of the children did in the several 



500 lOeO 1500 



FIG.S MEDIA NS GRAPE 6 SERIES B PmSlON 



cities, follow the mode which is the score made by the largest 

 number of children. It is in bold face type. It ranges from 

 six problems attempted, -which is the mode for thirteen cities, to 

 eight problems, the mode for city 17. In cities 13 and 20 the 

 distribution is bimodal. 



The information which one gets by studying the relative 

 achievement of several cities as measured by any one test, say 

 fifth grade addition, is very greatly supplemented by following 

 a particular city through the several tables and graphs. 



