1. (, ) , :
) , 1 2:
: 0,00145 ≈ 0,0015 1,237% ≈ 1,3%
) , 3, 4, .9
: 8.27 ≈ 9; 0.0862% ≈ 0.09%; 0.00035 ≈ 0.0004; 43.5 ≈ 5;
2. , .. , .
3. : 243.871 0.026; 243.87 0.03; 243.871 2.6 ≈ 244 3; 1053 47 ≈ 1050 50.
4. , 5. : 8.337 ( ) ≈ 8.3;
5. 5, ( ), .
: 8.3351 ( ) ≈ 8.34; 0.2510 ( ) ≈ 0.3;
:
1. n x i .
2. n
= (Σ x i)/ n.
3.
.
4.
(Δx 1)2, (Δx 2)2,..., (Δx n)2.
5. 
6. ( P = 0.95 0.99).
7. t P n.
8. ( ) Δx = 
t.
9. 
.
