The type of deviations that would result for curves 

 with skewness and kurtosis are shown in figures 9 and 10. 

 The distribution curves for certain amounts of skewness 

 and kurtosis are computed using Edgeworth's first four 



99.99 

 99.9 



99 

 98 



£ 95 

 « 90 



=> 70 



§60 



<c 

 uj 50 



^40 



<: 



^30 

 3 20 



3 10 



<c 



0.1 



0.01 



NEGATIVE SKEWNESS. 



POSITIVE SKEWNESS 



-2-10 12 3 



AMPLITUDE IN STANDARD DEVIATION UNITS 



Figure 9. Curves illustrating positive and negative 

 skewness, computed using Edgeworth's series. 



26 



