WST01/01, (IAL), Edexcel, S1, Jun/Oct 2020, Q3, Normal Distribution

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  • Опубликовано: 18 ноя 2024

Комментарии • 24

  • @reverse5906
    @reverse5906 Год назад +15

    I don't know why I thought this but he sounds like Thor lol

  • @yassienE4935
    @yassienE4935 Год назад +3

    for question C, why did u use 4.3 and not 3.04?

  • @zaminhaqqani3487
    @zaminhaqqani3487 2 года назад +3

    How do you know when to standardise it and when not to?

  • @antivirus6189
    @antivirus6189 Год назад +4

    For part C, why did you do 1/3 multiplied by the probability of the distance being greater than 4.3, didn’t those who achieve a distance of atleast d metres also receive a medal?

    • @MrHassaansMathsChannel
      @MrHassaansMathsChannel  Год назад

      We want those who receive GOLD medals.... not just any medals

    • @antivirus6189
      @antivirus6189 Год назад +3

      @@MrHassaansMathsChannel It said that those who achieve a distance greater than 4.3 receive "a medal" it did not say a gold medal though, and those who achieved a distance of atleast d metres also received "a medal" thats why Im confused

  • @aidenreten6502
    @aidenreten6502 Год назад +2

    WOOOOW VERY FANATASTIC VIDEOO!!!

  • @abbadiodeh4744
    @abbadiodeh4744 Год назад +2

    Why didn't you multiple 1/3 by 0.80 in part c

  • @3bra7maan
    @3bra7maan Год назад +1

    mr hassan thank you for everything man❤️❤️❤️

  • @basharhobbi3078
    @basharhobbi3078 Год назад +2

    hello sir i wanted to ask whats the best way of studying statistics the exam is on thursday adn i still tend to face difficulties in solving past papers

    • @MrHassaansMathsChannel
      @MrHassaansMathsChannel  Год назад +3

      Pick a topic that you are having issues with and go to the playlist and watch some videos on that topic -- use the index as this video shows how ruclips.net/video/7gb-yPzWAUY/видео.html

    • @toodles8397
      @toodles8397 Год назад +2

      me too bro 😭😭😭😭good luck! probably won't see you but at least we'll suffer together.

    • @ShoutoutMyMucus
      @ShoutoutMyMucus Год назад +2

      @@toodles8397 good luck to u two. I’m also doing it tomorrow :) remember not to panic as that it is the most crucial thing

  • @afnanjaradat9999
    @afnanjaradat9999 2 года назад +1

    what is the difference between wst11 and wst01 ??

    • @ShoutoutMyMucus
      @ShoutoutMyMucus Год назад +1

      st01 is the old specificatiom, st11 is the new specification (2018)

  • @aarashiqbal5662
    @aarashiqbal5662 2 года назад +4

    I love you

  • @StrangerinGenZ
    @StrangerinGenZ Год назад +1

    THANKS A LOT SIR

  • @zeyadrohim3529
    @zeyadrohim3529 Год назад

    So in question (b) why didnt you divide the probability given by 80% I mean isn't 80% of those who achieved certificates using the 80% alone is like using the 80% of all the students

    • @MrHassaansMathsChannel
      @MrHassaansMathsChannel  Год назад

      i really do not understand what you are trying to say... we found the value of z such that 80% of the whole sample had a jump that was longer than that value

    • @zeyadrohim3529
      @zeyadrohim3529 Год назад

      @@MrHassaansMathsChannel what am trying to say is he said in the question 80% of students WHO ACHIEVED .... so shouldn't we divide 80% by the probability of students who achieved.... because using the 80% alone is like the 80% of all students not just students who achieved medals like in previous question where they used to say for example GIVEN THAT SHE QUALIFIES FOR THE FINAL so we divide the probability they are asking for by the probability for qualification for the final because if we didn't do that it's like we are just finding the probability she qualifies

    • @MrHassaansMathsChannel
      @MrHassaansMathsChannel  Год назад

      The question is saying that 80% of all the students get medals - those who got more than d. Find d... I think you have misunderstood what the question is asking

    • @MrHassaansMathsChannel
      @MrHassaansMathsChannel  Год назад +1

      Part c is now limiting the sample space to to those who got medals only

    • @zeyadrohim3529
      @zeyadrohim3529 Год назад

      @@MrHassaansMathsChannel ok ya I got it now thanks 😊