1. Simple Set THeory/Probability Problem

Hello all,

I'm very new to statistics as well as this forum, so please bear with me.

I've tried solving this for about 30 minutes now and I've made pretty much 0 progress on it. The question is:

Suppose that evens A and C are mutually exclusive. P(not A)=0.7, P(CB)=0.4, what are the maximum and minimum values for P(not C)?

An answer is helpful, but what I'm really looking for is detailed steps on how to approach, simplify, and solve this problem.

2. Re: Simple Set THeory/Probability Problem

hi,
try to draw a Venn diagram. not A will take up 70% of the total area and C must be inside this area, right? CB will take up 40% of the same area. Now it should be easy to figure out how big the area covered by C could be.

regards

3. Re: Simple Set THeory/Probability Problem

What does CB represent? Is that supposed to be the intersection of C and B? The complement of B? It's not clear from context.

4. Re: Simple Set THeory/Probability Problem

I guessed intersection . The complement in the problem would be "not C"

5. Re: Simple Set THeory/Probability Problem

I understand. It certainly would make the problem a lot easier if that was the case though eh?

 Tweet

Posting Permissions

• You may not post new threads
• You may not post replies
• You may not post attachments
• You may not edit your posts