P(aub)=?
P(a)=0,3
P(B)=0,4
P(A∩B)=0,2
P(A∩B)=?
P(A')=2\3
P(B')=1\6
P(AUB)=1\2
P(A\B)=?
P(A)=0,9
P(A∩B)=0,5
1]
P(A∨B)=P(A)+P(B)-P(A∧B)=0,3+0,4-0,2=0,5
2]
P(A)=1-P(A¹)=1-2/3=1/3
P(B)=1-P(B¹)=1-1/6=5/6
P(A∧B)=P(A)+P(B)-P(A∨B)=1/3+5/6-1/2=2/6+5/6-3/6=4/6=2/3
3]
P(A/B)=P(A)-P(A∧B)=0,9-0,5=0,4
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1]
P(A∨B)=P(A)+P(B)-P(A∧B)=0,3+0,4-0,2=0,5
2]
P(A)=1-P(A¹)=1-2/3=1/3
P(B)=1-P(B¹)=1-1/6=5/6
P(A∧B)=P(A)+P(B)-P(A∨B)=1/3+5/6-1/2=2/6+5/6-3/6=4/6=2/3
3]
P(A/B)=P(A)-P(A∧B)=0,9-0,5=0,4