Пособие по решению задач по теории вероятностей и математической статистике (110,00 руб.)

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                                                                      

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                                                                                                                                                                                                                                                                                                                         

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      A        IA(ω)   Ω IA(ω) =  1, ω ∈ A, 0, ω ∈ A     IA(ω) A         IA = 1−IA; IAB = IAIB;    IA+B = IA(ω)+IB(ω)−IA(ω)IB(ω); IA\B = IAB = IA(1−IB); IA −IA = I∅ = 0;  IΩ = 1;  IAIA = IAA = IA.     IB(ω) B  A B        ω ∈ A.          A     B                        A+B = A· B   IA+B = 1−IA+B = 1−IA −IB +IAIB =    = 1−IA −IB(1−IA) = (1−IA)(1−IB) = IAIB = IA·B . A+B         IA+B = IA +IB −IAIB =  IA +IBIA , IAIB +IB .  BA  A      A · (BA) = ∅.    

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   A+B =  A+BA , AB +B .     X      A·X = A· A· B. IA·X = IA·A·B, IAIX = IAIAIB, IA(IX −IAIB) = 0, IX −IAIB = IAC,   C     IX = IA·B +IAC = IA·B+AC .  A· B     AC    X = A ·B +AC    C                  X     A, B         C                X +A+X +A = B A, B, C   A                                                                                                     A              

Стр.7

                  A                P(A) = mA n ,   mA       A n                                                      A    }    mA = 2          A = { n = 5    P(A) = 2/5         B = {          l   k          A                                 }                  k          l      Cl Cl  k ≡       k l n = C2    k       = k! l!(k −l)!.                  7 = 7 · 6 1 · 2 = 21, B        mB = C2           4 = 4 · 3 1 · 2 = 6. P(B) = 6 21 = 2  7.

Стр.8