, , S . S () . , , 0 F ( S) = F/m0 ( ). . : , .
, . , , - . . , ( : 1, 2, 3, 4, 5 6) , , , , , , .
, , , . , . , , . , , , .
, () .
, , , , , . . , , . , .
. () - .
, 1000 4 160 . 160/1000 = 0,16 4 . , ,
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: .
, :
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, , . . [. (2.2)] . , , , , , , 0,515.
. - , ( ), . , ( ). , , 0,5. , ( ) , , () = () = 0,5 . .
, , ). , , - , . :
. .
40 : 10 30 . , .
: = 10. ( ) : n = 40. , . (2.3)
.
: 1, 2, 3, 4, 5 6, . . = 6. 2, 4 6: 3.
(2.2) (2.3), 0 <()< 1.
, , .
, , , 7.
, , , 1.
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^ , . , . c.
: ( ) .
. , , , 2 , . , , , 1 + 2.
, (2.3),
1 6 . ( 1) ( 6) : () = () = 1/6, (2.4)
, .
50 : 10 , 20 , 5 15 . , , .
( ) () = = 10/50 = 1/5, ( ) () = 20/50 = 2/5 ( ) () = 5/50 = 1/10. ( ) = () + () + () = 1/5 + 2/5 + + 1/10=7/10.
, .
, , .
, , :
(2.5) . , , A1 P(A1) = 7/10. 1 . 15, 50, (1) = 15/50 = 3/10 P(AJ + () = 7/10 + 3/10 = 1.
, . 0,4. .
, () = 0,4; , (2.5) () = 1 - () = = 1-0,4 = 0,6.
(At, A2,... Ak) , . , , .
40 : 20 , 15 5 . ( ) () = 20/40 = 1/2, ( ) () = 15/40 = 3/8 ( ) () = 5/40 = 1/8. Av A2, 3 ; , () + () + () = 1/2 + 3/8 + 1/8 = 1.
: .
. , 1 , , 2 , . , , , 12. , 12, 1 2 .
5 10 , 3 17 . , : 1) ; 2) ; 3) -I , ; 4) I , .
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( ) () = 5/15 = 1/3, ( ) () = 3/20, ( ') (') = 10/15 = 2/3 ( ') (') = 17/20. (2.6):
1) 1) 1) ( ) = () () = (1/3) (3/20) = 3/60 ;
2) 2) 2) (' ') = (') (') = (2/3) (17/20) = 17/30 ;
3) 3) 3) (' ') = {) (') = (1/3) (17/20) = 17/60 , ;
4) (' ) = (') () = (2/3) (3/20) = 1/10 t , .
, ' ', ', ' ,
, . , 0,515 .
,
, , . , , ,
(/) , . . , .
5 : 3 2 . , .
, ( ), () = / = 2/5. 4 : 3 1 . ( ) (/) = 3/4. (2.8),