Przy danych P(A')=⅓ P(A u B)=5/6 P(B')=½
Oblicz:
P(A n B)
P(A n B')
P(B\A)
P(A')=1/3 to p(A)=1-1/3=2/3 P(B')=1/2 P(B)=1/2
P(AuB)=P(A)+P(B)-P(AnB)
5/6=2/3+1/2-P(AnB)
5/6=4/6+3/6-P(AnB)
-2/6=-P(AnB)
P(AnB)=2/6=1/3
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P(A')=1/3 to p(A)=1-1/3=2/3 P(B')=1/2 P(B)=1/2
P(AuB)=P(A)+P(B)-P(AnB)
5/6=2/3+1/2-P(AnB)
5/6=4/6+3/6-P(AnB)
-2/6=-P(AnB)
P(AnB)=2/6=1/3