1. B. ;
  2. II. II
  3. II. () .
  4. II. .
  5. III.
  6. III. .
  7. V2:

䳿 , , , P (A) P {A}. , :

P ( ) = 1; P ( ) = 0. (3.6)
P ( ) P (A) P ( ). (3.7)

Ai Aj 䳿, . .Ai Aj = ,

P (Ai Aj) = P (Ai) + P (Aj). (3.8)

, ??. , , , .

(3.8) - {i}n i = 1:

(3.9)

- ( ) . , , . , ' (, ), ().

, .

, 1, 2, ..., n. (3.3) :

= .,

䳿 1, 2, ..., n, (3.6) (3.9):

= P ( ) =1. (3.10)

䳿 1, 2, ..., n,

- 䳿 A:

(3.11)

(mA), 䳿 , ( ) n.

ֳ , . , n , , , 䳿 , 䳿 .




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