, . 0% 100%, (.. ), , , , , .
1/n n , . 2 , n=5 (1,4,3,7,3), (3) .
. 2. 1, 4, 3, 7, 3. 1/n = 20% 3 ( ).
4 70- . 4, , . , 70%, 60 80 %.
.
. . 4.2.2. , .
. 4.2.7. . , ( 10% 90%) 150 430 .
: , . ( ), . . 4.2.9. , .
(.. , ) . , , . .
, . , (, 100 200). , . , .