A Level Biology Revision "Continuous Variation and Standard Deviation"

Поділитися
Вставка
  • Опубліковано 14 лип 2024
  • You can find all my A Level Biology videos fully indexed at www.freesciencelessons.co.uk/...
    In this video, we look at continuous variation and standard deviation. First we look at the two different types of variation, which are continuous variation and discontinuous variation. We then explore how to calculate standard deviation and what standard deviation tells us about the amount of variation present.
    Image credits:
    Bacillus cereus
    commons.wikimedia.org/wiki/Fi...
    Mogana Das Murtey and Patchamuthu Ramasamy, CC BY-SA 3.0 creativecommons.org/licenses/..., via Wikimedia Commons
    Zebra
    commons.wikimedia.org/wiki/Fi...
    Taken & submitted by Paul Maritz (PaulmazModified by Pharaoh Hound, CC BY-SA 3.0 creativecommons.org/licenses/b..., via Wikimedia Commons
    Ash tree
    commons.wikimedia.org/wiki/Fi...
    Brian Green / Ash Tree

КОМЕНТАРІ • 14

  • @saga_l1
    @saga_l1 11 місяців тому +7

    Thanks sir, I now finished almost 17 videos of chemistry, it helped me alot.

  • @bobatron72
    @bobatron72 3 місяці тому +7

    loving the haircut sir

  • @sidrahaidary9490
    @sidrahaidary9490 11 місяців тому +3

    Thank you for all the support
    Without you we couldn’t have achieved the good grades

  • @sunnybeans101
    @sunnybeans101 5 місяців тому

    Very helpful for my Jan Bio mock!

  • @sincerely_vini
    @sincerely_vini 6 місяців тому +2

    why do we divide by (n-1) rather than by (n)?

  • @charlotteclarke2301
    @charlotteclarke2301 4 місяці тому +2

    can someone explain what where he got those numbers from after 4:28 where he says 68% of our values lie between 1 standard deviation of our mean etc?

    • @Freesciencelessons
      @Freesciencelessons  4 місяці тому +2

      You don't need to know where the 68% comes from. Essentially, that value arises from the calculation.

    • @Charlotte-hf5jz
      @Charlotte-hf5jz 4 місяці тому +1

      @@Freesciencelessonsthank you, but what do you mean by 1 standard deviation of our mean, could you explain that?

  • @ashtondowling-iq2lo
    @ashtondowling-iq2lo 11 місяців тому +1

    Hi Shaun will you start A Level Physics in the next year or so? I do A Level Biology and Chemistry (and Maths) but also Physics and at the moment I don't have a savior for A Level Physics for Y13. Thank you.

    • @shein672
      @shein672 8 місяців тому

      Physics gorilla

    • @shein672
      @shein672 8 місяців тому

      Physics online

  • @Youtuber-by6hx
    @Youtuber-by6hx 11 місяців тому +1

    this channel !!!