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Q:exactly one of the events A and B occurs?
event A occurs only = p(1-q)
event B occurs only = (1-p)q
then = p-pq+q-pq
= p+q-2pq
- by trisai
Tue Dec 09, 2008 9:49 pm- Forum: Problem Solving
- Topic: Probability
- Replies: 3
- Views: 1546