Cyan Yoshi Posted September 29, 2015 Report Share Posted September 29, 2015 I have no idea where to start this IB HL maths problem. It's from the probability section of the curriculum. If anyone can help me tonight before I leave for school tomorrow that would be amazing! P(A or B)' = Ø, P(A/B') = 1/3, P(A) = 6/7, find P(B). All I need is some guidance to start the problem because I've done many other problems like this where you use the information booklet but the Ø is throwing me off. Thanks Reply Link to post Share on other sites More sharing options...
Cyan Yoshi Posted September 29, 2015 Author Report Share Posted September 29, 2015 I am extremely sorry fourm members. I didn't mean to spam this post, after I hit submit it just showed the page endlessly loading so I tried it four times and then gave up. Just now found out that it posted 4 times really sorry. I don't know how to remove posts either. Reply Link to post Share on other sites More sharing options...
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