Variance (1 of 4: Introducing the formulas)

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[@Defender2002]

Just to say how grateful I am for your video's - I am nearly 70 and I took my Applied Maths degree many years ago and seeing your lessons has contributed to a decision to sign up for a second degree this year in pure maths. My dad was born in the latter part of 1899 and I often wonder what he would think of seeing a guy teaching maths all the way from Australia whilst he was sitting here in the UK - pondering the wonders of the internet is something your average high school student may not think about all that often. I'm sure to them the wonders of modern communication - all based on mathematical modelling and thinking - is just an everyday occurrence. May your excellent efforts continue.

[@AriaHarmony]

The internet is wonderful isn't it? Where I'm from easy access to science and math education is not possible, yet I now get to have top quality education without leaving the comfort of my home. It's amazing! :D

[@thecustomer2804]

I’ve been watching the videos in your Random Variables playlist and I have to say, I haven’t thought much about the Statistical applications of Calculus until I came upon it. I’ve been really liking this series. Keep up the good work!

[@telugutechtechforall8676]

It has become an habit watching your videos. Enjoying your videos. Thanks for making these videos available in youtube.

[@babytrey2769]

I have my GCSE coming and this helps me

[@paulbletchly3615]

Great explanation and breakdown! Thanks from QLD

[@particleonazock2246]

Look at the ratio of likes to dislikes, and then will you truly see Eddie Woo's sheer knack for teaching. Dislikers, take my advice to heart!

[@SunitaYadav-qj8rz]

If there will be another shakuntala Devi then he or she will be his student for sure.

[@sriragavmuthukumar2615]

sir, we are ready to see your upcoming book.. But your last book was like kind of activities..

[@Maths-Evolution]

Big fan sir fron india

[@theyaghu]

expect value means what sir

[@koungmeng]

I would love to see the proof

[@yashgaurkararts1529]

What grade students do you teach?

[@kapilgupta1027]

Bhai raat ke 3 baje maths Kon padhta hai. Love from India

[@AmanKumar-hb3cb]

Hi Eddie, What happen if we take modulus of x-mu instead of squarring?

[@matemaatika-math]

Modulus by what?

[@xavierxante8649]

It's a good question and is related to least squares regression. But I too don't have a crystal clear understanding of it. Would love to hear his explaination.

[@deepaksheoran4645]

Why are we multiplying the probability with (x-expected value)^2

[@qobilruzmatov48]

Nice good

[@krishnaasopa-the-next]

Plz make vedio on lines and angle class 9

[@xavierxante8649]

6:25 Why can't we use |x - μ| instead, in the formula of variance? That works too right?

[@maximbrekhman4276]

I’ve been wondering the same thing for a while now

[@yashmodi919]

Hello sir good morning

[@23smind]

Если вы тоже из России: лайк

[@happypup6675]

I can’t belive there are no dislikes, even though I don’t understand this, but it means its really good. (I didn’t dislike the video by the way)

[@matemaatika-math]

Why do you think is that you don't understand this?

[@happypup6675]

@@matemaatika-math because i’m too yoinng to understand i’m doing factors and integers ;-;

[@peacecop]

@@happypup6675 Why are you here?

[@happypup6675]

@@peacecop I’m asking the same question.

[@peacecop]

@@happypup6675 Tell me after you'll have found the answer!

[@jmalagaban7995]

Plsss teach us about the number theory sir, chinese remainder theorem and some topics related to the number theory sir. Hopefully you can see this. Thanks

[@particleonazock2246]

Yes, perhaps even forge a connection between number theory and algebra, with cyclotomic polynomials. Then again, in all of his videos, he is adhering to the curriculum, wherein number theory doesn't appear so frequently.

[@samik9051]

He squared (x-u) so that we get a positive value, couldn't he simply have used modulus function?

[@matemaatika-math]

How would you use modulus?

[@mattiasphua5357]

Has Eric been changing the school he's been teaching in

[@particleonazock2246]

No, same school - Cherrybrook Tech High. Also, his name is actually Edward (shortened to Eddie), not Eric.

[@williammunny9916]

*_John 4. 23 But the hour is coming, and now is, when the true worshipers will worship the Father in spirit and truth; for the Father is seeking such to worship Him. 24 God is Spirit, and those who worship Him must worship in spirit and truth.” 25 The woman said to Him, “I know that Messiah is coming” (who is called Christ). “When He comes, He will tell us all things.” 26 Jesus said to her, “I who speak to you am He."_* _Jesus Christ loves you. Only Jesus Christ saves. Repent and be saved. God bless you and your family in the name of Jesus Christ...._

[@mrkitty777]

Isaiah 53

[@sivvu_siv]

But that comment isn't relevant here... Stop spaming Jesus

[@005Ash]

Ezekiel 25:17 The path of the righteous man is beset on all sides by the Inequities of the selfish and the tyranny of evil men Blessed is he who, in the name of charity and good will shepherds the weak through the valley of darkness for he is truly his brother's keeper and the finder of lost children And I will strike down upon thee with great vengeance and furious Anger those who attempt to poison and destroy my brothers And you will know My name is the Lord when I lay my vengeance upon thee

[@mrkitty777]

@@sivvu_siv maybe it's his cat or dog pet pressing his phone 😮

[@sivvu_siv]

Perhaps