1. 95% 50 60% ?
1 . 95% :
5060
= ---------------- = 31,6
, 50 60% , 31,6 95% 50 .
2 . 4 ( XI) , 1000 60% 20 632 95% 397 . 50 60% :
1000 60% 632 95%
50 60% - 95%
63250
= ---------------- = 31,6
1000 60% 397
50 60% -
39750
= ---------------- = 19,8
, 50 60% 95%. 1,4 .
3 . ( ).
95% 60 95 %
60%
0% 35
95 60% 60 95% 35 . 50 60% : 95 () 60% 60 () 95%
50 95%
5060
= ------------ = 31,57 ~ 31,6
31,6 95% 50 .
, ( ).
40% , , 95% ? 40%? 95% , , 40%.
2. 50 70% . ?
1 . 1 12 308 , 50 70%, 29,89.
2 . :
50700,811
= ---------------- = 29,87, ( 95% 0,809-0,813)
95% - 29,89.