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  1. K

    Mathematics: Post your doubts here!

    For II Sorry...my mistake If it can be repeated then it will be 4^3
  2. K

    Mathematics: Post your doubts here!

    I- 4! II- 3!
  3. K

    alevel chemistry grades...

    Btw, do they also give the component grades on the cie website because for igcse they didn’t.
  4. K

    alevel chemistry grades...

    The grades do not entirely depend on the components. If your overall marks are more than the threshold marks for A then you will get an A grade.
  5. K

    Statistics S1 Doubts

    1st- 48c43 5! x 6! 7P4 x 6!
  6. K

    Statistics S1 Doubts

    These were the most easiest permutation combination questions i had ever solved
  7. K

    Statistics S1 Doubts

    P(87<X<k) = 0.3 P(X<87) = 0.6718 (From the previous question) P(X<k)= P(X<87) + P(87<X<k) = 0.6718+ 0.3= 0.9718 P(Z<=(k-82)/root 126) = 0.9718 (k-82)/root 126 = 1.906 or (1.907) k-82= 21.4 k= 103.39= 103 (3sf) AND it was never greater than it is less than. Read the question again.
  8. K

    Mathematics: Post your doubts here!

    Sorry to post here but i need to somewhere. This will help- Please do watch and follow it.
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