#LinearRegressionChallenge
Let x be 1, 2, 3
y be 5, 1, 3
m be 8
b be 40
and N is the total number of Dataset we have

Note: N is the number of points, i.e. the length of the x list or the y list.
find

-2/N(Summation of (yi -(mxi+b) if i starts from 1 to N
Use python code
post you solution @pythonEthbot