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  1. K

    Chemicals spilled to the question paper?

    I have taken my AS chemistry paper 3. During the test, I spilled kmno4 to the question paper! Wat will happen? Will they reduce my marks? Will they mark it? Aaaaaaaaaaaaaaaa
  2. K

    S2 Mathematics : Masters of statistics 2 please help us

    P7 is near. Let's start discussing!
  3. K

    S2 Mathematics : Masters of statistics 2 please help us

    Help
  4. K

    Chemistry P4| A2 only

    Here first of all see the reactions. If OH is increased, the reaction in cathode will favours to the left due to increasing number of reactants, the 2e on the right hand side will increase also.. So become more negative. Same applies for anode or right hand electrode, increasing the OH conc...
  5. K

    Chemistry P4| A2 only

    Easy question here - ligand http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s10_ms_41.pdf No 2 part b .. How can we know grey green ppt is Ni(OH)2 ,, I mean we are not taught so!!
  6. K

    S2 Mathematics : Masters of statistics 2 please help us

    Hello
  7. K

    S2 Mathematics : Masters of statistics 2 please help us

    Now ask me your doubts , I'll help to solve it!
  8. K

    S2 Mathematics : Masters of statistics 2 please help us

    Jeevan thinks that a six-sided die is biased in favour of six. In order to test this, Jeevan throws the die 10 times. If the die shows a six on at least 4 throws out of 10, she will conclude that she is correct. (i) State appropriate null and alternative hypotheses. (ii) Calculate the...
  9. K

    S2 Mathematics : Masters of statistics 2 please help us

    The number of adult customers arriving in a shop during a 5-minute period is modelled by a random variable with distribution Po(6). The number of child customers arriving in the same shop during a 10-minute period is modelled by an independent random variable with distribution Po(4.5). (i) Find...
  10. K

    S2 Mathematics : Masters of statistics 2 please help us

    The number of goals scored per match by Everly Rovers is represented by the random variable X which has mean 1.8. (i) State two conditions for X to be modelled by a Poisson distribution. Assume now that X ∼ Po(1.8). (ii) Find P(2 < X < 6). (iii) The manager promises the team a bonus if they...
  11. K

    S2 Mathematics : Masters of statistics 2 please help us

    The weights of bags of fuel have mean 3.2 kg and standard deviation 0.04 kg. The total weight of a random sample of three bags is denoted by T kg. Find the mean and standard deviation of T . Why the mean is 3.2 x 3 ? Why should it be multiplied by 3 ? Why the sd is square root of (3 x (0.04)^2) ?
  12. K

    S2 Mathematics : Masters of statistics 2 please help us

    So, paper 7 will be on 29th so we must unite and tackle the problems together. Luckily I have been able to do 3 or 4 questions out of 6 or 7 questions in the past papers. So, I'm hoping that I may clear your doubts and I'll do my best to clear yours :) so, let's start! I'm gonna ask first.
  13. K

    Mathematics: Post your doubts here!

    Please part 3 3 The number of goals scored per match by Everly Rovers is represented by the random variable X which has mean 1.8. (i) State two conditions for X to be modelled by a Poisson distribution. [2] Assume now that X ∼ Po(1.8). (ii) Find P(2 < X < 6). [2] (iii) The...
  14. K

    Mathematics: Post your doubts here!

    Ok thx for ur advices! I will ask you specific questions then... http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s11_qp_72.pdf how to solve no 2? I still don't understand how to find variance of a sample mean
  15. K

    Please help me, I posted a question on the post maths post ur doubts here. I really need ur...

    Please help me, I posted a question on the post maths post ur doubts here. I really need ur help, thanks before!
  16. K

    Mathematics: Post your doubts here!

    Hai there. Can somebody help me to explain all the questions? http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s11_ms_72.pdf Just a brief explanation. I don't have a really good basic s2. So please help me! I am still trying to...
  17. K

    Mathematics P2 P3 P7 (A2) notes badly needed!

    thank you sir for being a great help! I appreciate it! do u have any other resources because the s2 part is not available there? thank you!
  18. K

    Mathematics P2 P3 P7 (A2) notes badly needed!

    Does anyone here have notes for: - Pure maths 2 (paper 2) - Pure maths 3 (paper 3) - Statistics 2 (paper 7) which are in compiled pdf form? not in websites. I have searched through xtremepapers but in vain. Can anyone share me here in this thread? Thank you so much for helping someone's life! :D
  19. K

    A2:My Physics Revision notes

    thank you smzimran! May Allah bless you always!:)
  20. K

    hai do you have facebook

    hai do you have facebook
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