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#1 2010-04-03 05:07:30
- SmileAli
- Member
- Registered: 2010-04-02
- Posts: 10
Finding the Probability for an event
Hi, I am struggling with this problem, so if anyone can tell me how to get the correct answer, I would really appreciate it 
P(A) = 0.15, P(B) = 0.05, P(A or B) = 0.17
Find the probability that contains the event A but not event B.
I thought I could use P(A or B) - P(B) = 0.17-0.05= 0.12.
Is that right???
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#2 2010-04-03 07:43:50
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: Finding the Probability for an event
Yep, that's exactly right.
Venn diagrams help a lot with this kind of thing.
Why did the vector cross the road?
It wanted to be normal.
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