1.1.
Hi i-
Qi i- (, , )
n ,
1.2.
,
= × Q ×
Q
, ( )
1.1.
. . = × t.
.
T /
1.2.
1.3.
. . =
. = .. × σ
. ,
0,683 1
0,954 2
0,997 3
σ -
ti ,
t
n
= .
=
= , / ,
1.1. -
ti i- , ,
Qi i- , ,
1.2. -
Q ( )
( 1 )
= / , (, )
= , /
1.
()
= 1 ×
1 ( )
i i- ()
i i-
n
2. -
1 ()
3. ,
= × 12 × (, ) ×