aes 
co oO co 
2 -1/2 
(40) (Src. m)am lz = =| fort Vere +NU, e | eK 
Dees Van 
-1/NG, 
Then 
(41) E(z) = x ST \e F (2, m)am |az =< atl fet 2] 
aa AAEM | 
20 2 
W 2 Y -1/2y 
2 ome) -E°/2 1 2 
(42) E(z‘) = Ve dé + (+ wo e | 
ae ee Ua ae 
-1/Nb, 
“b, yo  -1/2y 
3 -£7/2 1 2 
(43) (2°) = == [3¥, i. ere | 
Van k 
“1G, 
aie the probability density function is given by 
me serie bY P-L 2/4 Pb [oh V2 5 
(44) pla) ao 7) Nh Be pea noucinet atte to 
“O24 NO wi ton 
Wy Hy 
If b, is small compared to one, 
(45) E(z) = - 
(46) E(z°) = ¥, 
(47) E(z°) = 34,b, 
d 2 
i (2) = cae og 
48 p = @ - ) 
Z ip ve oS Zz 
Let 
(49) PAN ee v4 oe by 
Then 
(2th, )°/2, tr 2 
(50) (Eh) = eee 
are Nan \ M5 Ge 
re) 
