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  1. R

    Mechanics Paper 4 Guess Paper

    Does anybody have mechanics A Level math paper 4 guess paper? Thanks in advance and best of luck for tomorrow!
  2. R

    Stats guess paper

    Finding mean using incomplete data (as well as Standard Deviation) Normal Distribution question A really hard Perms and Combs question A Histogram question Probability distribution involving without replacement
  3. R

    Stats 1 Preparation

    You do C.C in a normal distribution when you convert a binomial distribution question into normal distribution
  4. R

    guesses about tomorw's paper stats???????

    I am thinking its going to be really hard. 62 takers bewareee!!
  5. R

    STATS question!

    We are using approximation here because you will convert this binomial distribution into normal distribution. So when that happens, we apply contunity correction and hence approximation.
  6. R

    Stats 1 Preparation

    Its like within one standard deviation, 68% of the values are within this range or 0.68. Within two standard deviations, its 95% of the date (values) or 0.95 and then within three SD its 99.99% or 0.99
  7. R

    Stats 1 Preparation

    yup!
  8. R

    Stats 1 Preparation

    Interquartile its is 0.75 (75%) while for others i have already listed Remember the 68-95-99.99% rule
  9. R

    Stats 1 Preparation

    I think he means Normal distribution probabilities. Its 68% - 95 % - 99.9% regarding mean + 1.S.D, Mean +2 S.D, Mean + 3 S.D respectively
  10. R

    Maths S1 M/J10 Solve please

    P is permutation where arrangement is important (ordering is important). Usually found when you are placing people in a row or whichever situation requires order However combination (C) is where arrangement is NOT important and usual events involving it are people being selected in a group, etc.
  11. R

    Stats 1 Preparation

    I know seriously. Perms and Combs could make or break the whole paper
  12. R

    conditions for binomial and normal dist

    Posted here viewtopic.php?f=26&t=8529&start=10#p88579
  13. R

    Stats 1 Preparation

    Points are not for normal distribution. They are for Binomial Distribution actually These are the following points: 1) A finite number , n, trials to be carried out 2) The Trials are independent 3) The outcome of each trial is deemed either a success or a failure 4) The probability, p, of a...
  14. R

    Stats 1 Preparation

    (0.3)^9 + (0.7)^9 is taken because in other words it is 9C9 x (0.7)^0 x (0.3)^9 and (0.7)^9 is 9C0 x(0.3)^0x(0.7)^9 so you see 9C9 x (0.7)^0 = 1 and 9C0 x(0.3)^0 = 1. thats why the full form is not written in the marking scheme. And both the parts were added as the word "or" was used in the...
  15. R

    MODULUS IN S1

    Nope modulus is not part of the syllabus except for in normal distribution equation. However logs is part of the syllabus ( telling all the non p3 folks out there)
  16. R

    Stats 1 Preparation

    I know man but the perms and combs are seriously killing me. I am just happy ke gt for S1 is comparativeness lower so A tou ahi jana chahiye
  17. R

    Stats 1 Preparation

    Are you sure that you have linked the right paper? Its a histogram question in here which wouldnt require this stuff.
  18. R

    Stats 1 Preparation

    Sorry i had made a silly mistake!! The Stats thing is taking a toll over my sanity seriouslY!
  19. R

    Stats 1 Preparation

    So folks, how is Stats preparation going? Or has it been completed? Lets talk about some tips and tricks in this thread regarding any S1 Topic. (like notes and stuff) For example Median will be preferred over mean when there is an outlier. and the conditions of binomial distribution is that the...
  20. R

    maths p62

    Grade Threshold Usually the grade threshold of this paper is around 35-37 out of 50
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