Hi Eddie, as a fellow Aussie, I’ve been watching your videos for quite some time. I find it great how you can cover an array of mathematical concepts for all audiences. I was wondering if you had any advice on how to grow a developing maths channel like mine, as I can see that it has been so successful for you. No other youtubers have responded when I have asked them so I hope you do. Thanks Eddie, you’re an inspiration!
Hi Eddie, want to ask you why do we do Powers before multiplication although they both are the same and the same with multiplication and addition hope you answer, thanks.
The order of operations isn't a fundamental mathematical result -- it's just a convention. And so mathematicians have arbitrarily decided that powers should be done before multiplication, because in most situations that makes the notation look cleaner. For example, when we write 4x^2, we mean "square the x, then multiply by 4", not "multiply by 4, then square the whole thing". Order of operations is a statement about mathematical _notation_ not about mathematics itself.
alright. but in this example we did not need any statistics. you can just compare times. in this case maybe the z score is saying something, but I could convolute from this, that there may be a race with the same distance covered with a mean time of 4 hours with no standard deviation and our paper champion finishes in 3 hours. how is that better or more impossible than Sydney or even Athens. whatever anyway this is madness. did you hear the Yankees beat the cowboys with a z score of 0.4. Wait til I tell my grandchildren
Your argumentation would be true if the conditions in Sidney and Athens would have been the same. In reality, they are different and incomparable using absolute times. Who are these Yankees and cowboys, marathon runners? Yes, you could compare them but only within the same competition as z-score will be calculated using only data of one competition.
Muy interesante y didáctica la presentación por parte de Eddie Woo. Su servidor hace tiempo que impartió clases de matemáticas, y una de mis presentaciones que desarrollé sobre este tema de la Distribución Normal que me resulto muy útil para que mis alumnos que por alguna razón no podían asistir o para alumnos de sistemas de aprendizaje en línea que trabajaban de forma independiente (sin la presencia física del docente), fue esta: * Prueba de hipótesis para distribuciones normal, y t student. Presentación diseñada por el MTRO. JAVIER SOLIS NOYOLA. Acceso en: es.slideshare.net/javiersolisp/prueba-de-hiptesis-para-distribuciones-normal-y-t-student La idea de mi comentario y el compartir este recurso de material didáctico, es para que sean reutilizados por los docentes y los alumnos. Saludos. Mtro. Javier Solis Noyola
Hi Eddie, as a fellow Aussie, I’ve been watching your videos for quite some time. I find it great how you can cover an array of mathematical concepts for all audiences. I was wondering if you had any advice on how to grow a developing maths channel like mine, as I can see that it has been so successful for you. No other youtubers have responded when I have asked them so I hope you do. Thanks Eddie, you’re an inspiration!
reply to him, eddie!
Eliam Chang Haha 😂
Hi Eddie, want to ask you why do we do Powers before multiplication although they both are the same and the same with multiplication and addition hope you answer, thanks.
The order of operations isn't a fundamental mathematical result -- it's just a convention. And so mathematicians have arbitrarily decided that powers should be done before multiplication, because in most situations that makes the notation look cleaner. For example, when we write 4x^2, we mean "square the x, then multiply by 4", not "multiply by 4, then square the whole thing". Order of operations is a statement about mathematical _notation_ not about mathematics itself.
Please write down an example where powers and multiplication and addition are the same and an example where they are not.
@@matemaatika-math they always the same, For example 2 to The Second = 2*2
And 2*2 is 2+2
@@hmeh6489 Do you come to the same conclusion if you replace 2 by 3?
@@matemaatika-math yes
I am a senior aerospace engineer student, why am I looking to videos about normal distribution on Saturday?
A computer engineer here.
Most of the planes return to Earth.
Keep it up!
But z score isn't time right. It's min dividing by min, so it's unitless constant.
Yes, another example of "your" math, I hope you like. :D -> sinx/n = six = 6
@@nogamenolife9182 give me correct explanation if you can with your 'math' , if not chill at home keyboard commando
@@mithilesh2750 Dude, I didn't want to offend you. Sorry.
@@nogamenolife9182 Your example is funny but how is it related to any of this?
His name should be Eddie Wow
Wow😂 I agree.
@@Tom_Son 😶😒
Thank you
Good 👌🏼
alright. but in this example we did not need any statistics. you can just compare times. in this case maybe the z score is saying something, but I could convolute from this, that there may be a race with the same distance covered with a mean time of 4 hours with no standard deviation and our paper champion finishes in 3 hours. how is that better or more impossible than Sydney or even Athens. whatever
anyway this is madness. did you hear the Yankees beat the cowboys with a z score of 0.4. Wait til I tell my grandchildren
Your argumentation would be true if the conditions in Sidney and Athens would have been the same. In reality, they are different and incomparable using absolute times.
Who are these Yankees and cowboys, marathon runners? Yes, you could compare them but only within the same competition as z-score will be calculated using only data of one competition.
A lot of harm has come from trying to fit data to the normal distribution!
?
@@Channel-dp3wc I was thinking of NN Taleb's 'The Black Swan'...
@@stephensmith799 Ok I will look into it thanks.
Nice good
Muy interesante y didáctica la presentación por parte de Eddie Woo.
Su servidor hace tiempo que impartió clases de matemáticas, y una de mis presentaciones que desarrollé sobre este tema de la Distribución Normal que me resulto muy útil para que mis alumnos que por alguna razón no podían asistir o para alumnos de sistemas de aprendizaje en línea que trabajaban de forma independiente (sin la presencia física del docente), fue esta:
* Prueba de hipótesis para distribuciones normal, y t student. Presentación diseñada por el MTRO. JAVIER SOLIS NOYOLA. Acceso en:
es.slideshare.net/javiersolisp/prueba-de-hiptesis-para-distribuciones-normal-y-t-student
La idea de mi comentario y el compartir este recurso de material didáctico, es para que sean reutilizados por los docentes y los alumnos.
Saludos.
Mtro. Javier Solis Noyola