{TAIL ~ The method} 30, wherein {HEAD ~ said probability} is determined by: ##EQU6## where Φ represents a density equation of standard normal distribution 
{ TAIL ~ The method } 30 , wherein { HEAD ~ said probability } is determined by : # # EQU6 # # where Φ represents a density equation of standard normal distribution
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH