bLub Posted May 7, 2010 Report Share Posted May 7, 2010 This paper was just rubbish. The questions were so tricky. MEAN!! grrr but at least, paper 2 wasn't that bad... Reply Link to post Share on other sites More sharing options...
pomoni Posted May 7, 2010 Report Share Posted May 7, 2010 This paper was just rubbish. The questions were so tricky. MEAN!! grrr but at least, paper 2 wasn't that bad...agreed.. annoying math Reply Link to post Share on other sites More sharing options...
sweetnsimple786 Posted May 7, 2010 Report Share Posted May 7, 2010 Does anyone remember the Venn diagram/probability question from TZ1? I'm totally blanking out on it, but I remember that the 3rd or 4th part was ridiculous. It just had events A and B and labeled p and q or something like that. Reply Link to post Share on other sites More sharing options...
CommeDesEnfants Posted May 7, 2010 Report Share Posted May 7, 2010 Does anyone remember the Venn diagram/probability question from TZ1? I'm totally blanking out on it, but I remember that the 3rd or 4th part was ridiculous. It just had events A and B and labeled p and q or something like that.Yes, I disliked that question! I saved it till last, after I had finished Section B and could have some time to think about it. I found the first couple and last parts rather basic, but the major part that stumped me was the P(A|B`) part. I think I put 0.2/0.3 = 2/3, which other members of my class also put. Reply Link to post Share on other sites More sharing options...
sweetnsimple786 Posted May 7, 2010 Report Share Posted May 7, 2010 That's also what I got, but I didn't know why. I didn't know how to find P(A and B'). And the labeling was a little nonsensical since they put A and B into the Venn Diagram in the same space as they put r. It could have been interpreted differently... But other than that, I didn't really have a complaint for Paper 1. I don't think I got the rest right, but it was nice. Except for the quadrilateral with law of sines and cosines... maybe that wasn't paper one.. I can't remember anymore. I just remember I was trying to solve for theta and I blanked out so I assumed some value to solve for the rest of it, and then I figured out how to get a theta, but it was too late to rework the other parts. Reply Link to post Share on other sites More sharing options...
kelly lien Posted May 8, 2010 Report Share Posted May 8, 2010 Yeah, I got 2/3 for the probability of that question as well Reply Link to post Share on other sites More sharing options...
CommeDesEnfants Posted May 8, 2010 Report Share Posted May 8, 2010 Gosh, I hate probability; I always guess when it comes to those types of questions, unless there's a tree diagram. Thank goodness it's over! Reply Link to post Share on other sites More sharing options...
Tilia Posted May 8, 2010 Report Share Posted May 8, 2010 the probability that he misses the bus was 1/3 I think.. 1/3 * 1/3 equals 1/9 so I don't think they made a mistake..Are you sure? I seem to remember that it was 2/3 he would miss it, and one third he would catch it...Anyway, in the end I gave up, and just put 0 3 61/9 4/9 4/9I thin kthat's correct and I don't think they did a mistake. Did anyone understand the very last questions? Find the 2 values of p? I only got one value, pi/2. Reply Link to post Share on other sites More sharing options...
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