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| l = D l = | ||||
| Dt = t = | ||||
| st = | ||||
| T = <T> DT | ||||
| n(n-1)= | <t>= | Dtp= | Snt= | T = t = |
2
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2. Dt1 , . 3.
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| t1i, c | Dt1i, c | (Dt1i)2, c2 | ||
| a = tna = | ||||
| Dt1 = t1 = | ||||
| st = d1 = Dd1 = | ||||
| T1 = T1 DT1 | ||||
| T1 = t1 = | ||||
| n(n-1)= | <t1>= | Dt1p= | Snt1= |
3. , .. t2. 5 . 4.
4. Dt2 , . 4.
4.
| t2i, c | Dt2i, c | (Dt2i)2, c2 | ||
| a = tna = | ||||
| Dt2 = t2 = | ||||
| st = d2 = Dd2 = | ||||
| T2 = T2 DT2 | ||||
| T2 = t2 = | ||||
| n(n-1)= | <t2>= | Dt2p= | Snt2= |
5. : 
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1. .. . 1982. .1
2. .., .. . 1977, .1
3. .. . 1980, .2
