Formulas might be Incorrect in unit 2

[JohnMoody]

I think the following formula in unit 2.2 might be incorrect :

∂/∂𝑏=2/𝑛∑𝑖=1𝑛−(𝑦𝑖−(𝑚+𝑏))=▿𝑏

it should be

∂/∂𝑏=2/𝑛∑𝑖=1𝑛−(𝑦𝑖−(𝑚x+𝑏))=▿𝑏

Also, the following relation in 2.4 might have a small mistake as well.
Finally, the logistic regression function can be defined as:

ℎ(𝑥)=1 / (1 +𝑒^−𝑓(𝑥))

Then the displayed relation
ℎ(𝑥)={
0.5 > if 𝑓(𝑥) < 0
0.5 < if 𝑓(𝑥) > 0
}
Should actually be
ℎ(𝑥)={
0.5 < if 𝑓(𝑥) < 0
0.5 > if 𝑓(𝑥) > 0
}

[albertoezquerro]

Hello @JohnMoody,

Just reviewed those sections and yes, you are right. Thanks for pointing out these typos so that we can fix them.

Best,