Mlungisi Nkosi | Grade 12 Mathematics | Statistics | Measures of Dispersion | Standard Deviation
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- เผยแพร่เมื่อ 30 ก.ค. 2024
- Measure of dispersion - Standard deviation and variance are explained in the most simplified way.
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this guy deserves an award for being so brilliant and humble i feel like i would trust this guy with my life, love the content you deserve the 100K
Thank you so so much 😢
🔥🔥🔥😩 I joined the family this year an within 5 months I've managed to get to level seven because of your videos 🙏🏻🙏🏻🌎 you are the best
These videos are just amazing and so helpful. Please do a video on paper 2 like the the one you did on paper 1 . Thank you so much
Hey. Love your video. It helped me a lot. Also, on the last portion of your video (32:54), you made an error when selecting the values that were within one standard deviation of the mean. The lower boundary was 335,89, not 338.89. The correct percentage is 85%, from my calculations.
Please show me how you got that .... cause also from him i didnt get that ...
Do we count from 335 -341?
@@nomandlovu638 yes
It's 75%
@@nomandlovu638 no specifically from 335,89 - 341.31 so if a number is 335 exactly it doesn't count
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You never dissapoint 😭😭 Thank you sir .
Thank you
I'm always happy 🤗😁Thank you sir, God bless you 🙏
You’re welcome
Uncle is always on point. He don't miss💪
Thank you 😊
Hi can l pls enquire abt the last example, um when calculating the std deviation right?..i thought std deviation is given to us in the statement wich is 2.74...
❤️ Definitely
Hi sir
On the last question looking at the learners above u looked at class A but looking at learners below u looked from class A and B I don't understand why not classB on can u plz explain it for me
Wish you also did accounting your pace and patients is on point ....
It’s coming…
Sir I think you made an mistake on last example when you calculate the standard deviation of a below mean the answer should be 335.89
Thank you for correcting me
Yha I also saw that therefore I think that the correct answer is 18/20*100 which gives us 90%
Yeah he made a mistake n I think the final answer is 15over20×100=75%
Sir why are you using a Sigma sign to express your standard deviation while you expressed your mean as a X-bar... because the X-bar correspond with the small letter (s) as an expression of standard deviation and Muon sign is the that is supposed to be expressed as a Sigma sign?🤷♂
Uncle you never disappoint & i like it 😇
❤️❤️❤️❤️❤️❤️❤️
Hi Mr Nkosi ....i dont understand the standard deviation formula i need some clarity on that ...
Forever grateful Sir :)
Thank you 😊
Thank you sir ❤️
You’re welcome
Perfect timing
Excellent
Thank you sir👍
My pleasure 😇
MR SIR👊🙌
Malume’s got you
Hey Uncle ♥️
Wola 😃
Hi please advice after punching in the data then I press AC on Casio where do I go I'm bit lost please kindly advice I didn't get it
Search on Google it'll give you a set formula/instructions to get to each answer.
@@josuawilliam-grantsmith6002 thanks
Press shift,followed by 1 then it will guide u easily
Press shift and then one
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Sir is this the last chapter in Statistics
I’ll just do one last video on Histograms but essentially that’s it
@@MlungisiNkosi Oh okay
Thank you so much sir . May God bless you😊👍❤
Spelling disappears🤣🤣🤣ahhh I never laughed so much
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Sir you mad a mistake, mean for class A is 72 and mean for class B is 71.4
Thank you for pointinh that out
May you please avoid just giving us the standard deviation formula and actually substitute that would be highly appreciated ❤🙏🏾
Do you think it's advisable for a grade 11 learner to actually watch these
Yes… Actually it’s grade 11 content.
Strongly so
Hi sir , I think you made a mistake . Mean on Class B is supposed to be 71.6 % according to my calculations. Please kindly check that one out 😁
Hello SIRRR.....I think u made a mistake for 2.3 because it was supposed to be the values between 336---341...plz can u just check...It is towards the end of the video
Thank you for making me aware
Mean of class B is 71.2
Thank you 😊
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You know how we do it 😎