Probability 2 Question 4
4. For the three events and exactly one of the events or occurs (exactly one of the events or occurs exactly one of the events or occurs and (all the three events occurs simultaneously) , where . Then, the probability of atleast one of the three events and occurring is
(1996, 2M)
(a)
(b)
(c)
(d)
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Answer:
Correct Answer: 4. (c)
Solution:
- We know that,
On adding Eqs. (i), (ii) and (iii), we get
It also given that,