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Question 1
If E
1
and E
2
are two events associated with a random experiment such that P (E
2
) = 0.35, P (E
1
or E
2
) = 0.85 and P (E
1
& E
2
) = 0.15 then P(E
1
) is
A.
0.25
B.
0.35
C.
0.65
D.
0.75
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