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Mathematics
Mathematics
Problem
Events
A
A
A
and
B
B
B
satisfy
P
(
A
)
+
P
(
B
)
=
0.90
P(A)+P(B)=0.90
P
(
A
)
+
P
(
B
)
=
0.90
and
P
(
A
∩
B
)
=
0.25
P(A\cap B)=0.25
P
(
A
∩
B
)
=
0.25
. Calculate
P
(
A
∪
B
)
P(A\cup B)
P
(
A
∪
B
)
.
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