Diagram I 
100 
90 
80 
70 
60 
50 
i - 40 
30 
I - 20 
10 
-I 1 1 r 
T 1 1 r 
Integral Curves 
_L 
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 
— Histogram 
— Normal Curve 
