.
( ).
.
R = Xmax - X min. (7.2.1)
1- 5%, 2- 30%.
, , . , .
(2- ):
- . . ? , 0. , . .
-- --
å ô xi - x ô å ô xi - x ô * fi
= -------------------; = ----------------------.
n å fi (7.2.2)
, , ( ). .
, , , . .
(s2), , .
s2 --
.
-- --
å (xi - x) 2 å (xi - x) 2 * fi
s2= ------------------; s2= ----------------------.
n å fi
(7.2.3)
: ___
s = Ö s2 . (7.2.4)
(s2) (s) .
. , .
, .
, (), .
|
|
, , , .. , , , . .
: