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25 : 18, 17, 23, 18, 17, 19, 18, 20, 17, 22, 19, 21, 18, 18, 17, 22, 18, 21, 17, 21, 18, 19, 17, 23, 17. .
, : 17, 18, 19, 20, 21, 22, 23.
.
xi | |||||||
fi |
, . . , , . (.5).
.5.
. (1). n 1 + 3,322lg25 ≈ 6. , (1) , , : [17,19), [19,21), [21,23]. .
xi - xi+1 | [17,19) | [19,21) | [21,23] |
fi |
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.6.
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1. , , 20 , 5000 30000 .
2. 20 2012 .:
5, 4, 4, 4, 3, 2, 5, 3, 4, 4, 4, 3, 2, 5, 2, 5, 5, 2, 3, 3. :
) , ; ) , : (2 ), (3 ); ) , ( ) .
3. ():
: ) , ; ) , , , 15 . , : .
4. (. 1) (. 2) 2012 .
1