500 



400 - 



r 300 - 



Ti 200 - 



100 - 





^ 







- 







Chi-Squared Probabilities 



- 



^ 





Probabilities from Simulation 

 Estimated Spectral Density , p 



- 



* 







- 



• ^ A* 









A 

 A 









A 



Mr 





- 



** 



• 





- 





A 





1 



1 1 



1 



^ A 



1 1 1 1 1 «! 



Figure 68. 



0.05 0.10 0.15 



Frequency (c/s) 



Probability intervals for p, 

 number 6883. 



020 



0.25 



Hurricane Carl a data 



69 



