Теория вероятностей и математическая статистика. Фарафонов В.Г - 24 стр.

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
А
A

АА
A


.È=AAU


()()1.+=pApA
q

()1()1.= =- =-q pA pA p




   А     
В–

A


B
С 


( ) ( ),=ÇÈÇCABAB


( ),ÇAB


( ).ÇAB
АВ

( ) 1 0,7 0,3; ( ) 1 0,8 0,2.=- = =- =pA pB



А
А
АВ

()(()())()()
( ) ( ) ( ) ( ) 0,7 0,2 0,3 0,8 0,38.
= ÇÈÇ=Ç+Ç=
=×+×=×+×=
pCpABAB pABpAB
pA pB pA pB
 



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