Теория вероятностей и математическая статистика. Фарафонов В.Г - 22 стр.

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

АВ
( ) ( ) ( ).È=+pAB pA pB
      
   
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
       


()()()().È=+-ÇpA B pA pB pA B
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


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    В  
 А    
    А  В   
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