2015
Mathematics
JAMB
The probability of an event A is 1/5. The probability of B is 1/3 . The probability both A and B is 1/15. What is the probability of either event A or B or both
A.
2/15
B.
3/4
C.
9/15
D.
1/15
Correct Answer: 9/15
Explanation
In probability, or = + Prob( A or B or Both ) = 1/3 + 1/5 + 1/15 = (5+3+1)/15 = 9/15 = 3/5
In probability, or = + Prob( A or B or Both ) = 1/3 + 1/5 + 1/15 = (5+3+1)/15 = 9/15 = 3/5THIS WEEK's
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