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