@@hobispreciouseusmile Let's say f(x) = x Then f(x) is 0 when x = 0 If we do f(x+3) then it's zero in x+3 = 0 --> x = -3 So we moved the root of the graph 3 units to the left
Hey, Thanks for the question! We actually have a video on the topic! Here's a link to our Normal Distribution video: th-cam.com/video/IhtmW28slDw/w-d-xo.html&t Hope you'll find it helpful! Best, The 365 Team
Debjyoti Mondal I would rather say that in the new bell the distance between E(x) and x is the distance between 0 (E(x) in the standard bell) and respective x multiplied by sigma.
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I think y = f(x+3) would shift the original y=f(x) to the Left, not to the Right, and vice versa for the case of y = f(x-3)?
Yes you are right
The best video I have seen to understand Z Score logic, Excellent one.
I think that f(x+3) is moving 3 units to the left not to the right
Can u please explain why is it so
@@hobispreciouseusmile
Let's say f(x) = x
Then f(x) is 0 when x = 0
If we do f(x+3) then it's zero in x+3 = 0 --> x = -3
So we moved the root of the graph 3 units to the left
Thank you very much for this wonderful explanation!!!
Excellent video!
Glad you like it!
whats wrong with the subtitles? they used shrink instead of widen and widen instead of shrink
Best explanation on TH-cam
Wow!!just wow!!
What about the Normal Distribution? Do you have materials on that?
Hey,
Thanks for the question! We actually have a video on the topic! Here's a link to our Normal Distribution video: th-cam.com/video/IhtmW28slDw/w-d-xo.html&t
Hope you'll find it helpful!
Best,
The 365 Team
Video is nice but what is expected value
It's another name for the mean.
However the std deviation for f(2x)should be 4f(x) right? it means the var should be bigger, why it shrinks?
Hi, you are using the assumption f(2x)=2f(x) which is generally not true. You are right about var(2x)=4var(x), but var(x) is different than var(f(x))
I don't think the f(x+something) shifting stuff is correct.
Debjyoti Mondal I would rather say that in the new bell the distance between E(x) and x is the distance between 0 (E(x) in the standard bell) and respective x multiplied by sigma.
There are two types of transformations.
1. Transformation of the coordinates.
2. Transformation of the graph.
Here, it is the first one.
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ok