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  1. W

    Mathematics: Post your doubts here!

    another question.. what is the main condition whether to use binomial or normal dist. in finding probability??
  2. W

    Mathematics: Post your doubts here!

    you are really a master!! thanks :p
  3. W

    Mathematics: Post your doubts here!

    what to do on the 2nd part?
  4. W

    Mathematics: Post your doubts here!

    now it has cleared my doubt.. I think lol thanks :)
  5. W

    Mathematics: Post your doubts here!

    need to clear my doubt.. when is the time to use lower/upper boundary in normal distribution?? for instance mean=20 P(x>18) when to standardize I often see like this Z=(18.5-20)/(standard deviation.. hmmm
  6. W

    question no. 5 i)

    question no. 5 i)
  7. W

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathemati...

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w11_qp_61.pdf
  8. W

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathemati...

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w11_qp_61.pdf
  9. W

    Mathematics: Post your doubts here!

    i didnt get it right... in MS how in the world did they get Z=1.882.. I checked on the normal dis. table already..
  10. W

    Mathematics: Post your doubts here!

    then its probability is 0.94? O.o
  11. W

    Mathematics: Post your doubts here!

    and this? :p sory if I keep asking haha.. well just want to know how to do the 5(i)..
  12. W

    Mathematics: Post your doubts here!

    ohh I see.. then it helps me alot lol.. tomorrow is exam S1 btw n.n
  13. W

    Mathematics: Post your doubts here!

    in MS.. why 'not 2' is 1 instead of 0/5???
  14. W

    Mathematics: Post your doubts here!

    How about this?? is it possible to construct tree diagram?? I think it'll be big :S
  15. W

    Mathematics: Post your doubts here!

    oh I got it.. i took time until I realised that 3C3 is actually 1(for boy).. I appreciate ur help. thanks
  16. W

    Mathematics: Post your doubts here!

    how about this? I'm so confused when it comes to probability distribution T.T
  17. W

    Mathematics: Post your doubts here!

    thanksss ^^
  18. W

    Mathematics: Post your doubts here!

    yes thank u :D actually how to do the 1st part.. just the next 2 parts.. thanks again
  19. W

    Mathematics: Post your doubts here!

    Can u explain this??
  20. W

    How was Math P1??????

    yeap my next paper is on thursday which is P6 statistics gudluck for you too (y)
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