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  1. P

    Mathematics P6 NOV 2011

    I don't get continuity. Do we only apply continuity correction with continous data. Or when do we apply it? Please help ASAP. exam tommorow
  2. P

    Mathematics: Post your doubts here!

    That's one way. But i find it easier to do it this way: You do 13 dashes. _ _ _ _ _ _ _ _ _ _ _ _ _ Now the guys can not be next to each other in order for girls to be apart. So....you fill in 6 of those dashes (non consecutive) with 6 'B' s. ' Then the number of ways the boys can be arranged...
  3. P

    Mathematics: Post your doubts here!

    Can someone tell me how to do question 3 B and 5 ii http://www.xtremepapers.com/CIE/Interna ... 7_qp_6.pdf
  4. P

    BIOLOGY practicals help

    Emily could you check if i did the question above correctly. I'm not quite sure about it myself. The mark scheme doesn't tell you the answer, just the method.
  5. P

    BIOLOGY practicals help

    So you count the number of eye piece graticule units in fig2.2. To me, it looks about 8 units. Then compared with the stage micrometer, 8 eye piece graticule units is same as 9 stage micrometer divisions. We have been told that each division on the stage micrometer is 0.1 mm. Therfore we...
  6. P

    Chemistry: Post your doubts here!

    http://www.xtremepapers.com/CIE/Interna ... 4_qp_1.pdf I don't understand question 16, 17 and 18. Especially 18. It's really bothering me. I have NO CLUE how to work it out
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