Register Now


Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.


Register Now

It will take less than 1 minute to register for lifetime. Bonus Tip - We don't send OTP to your email id Make Sure to use your own email id for free books and giveaways

Regression Line vs Line of Best Fit

Regression Line vs Line of Best Fit,understand the difference between the two concepts of Linear Regression
Regression Line vs Line of Best Fit

The regression line (curve) consists of the expected values of a variable (Y) when given the values of an explanatory variable (X). In other words it is defined as E[Y|X = x]. To actually compute this line we need to know the joint distribution of X and Y, which in many cases we don’t know.

The line of best fit can be thought of as our estimate of the regression line. “Best fit” is not a precise term, since there are many ways to define it (ie using a least squares criterion, minimizing the absolute values of the residuals etc.).

One desirable property for the line of best fit to have is for it to converge to the regression line as our number of observations increase. And in the case of the variables X and Y having a bivariate normal distribution (which is often assumed) and selecting the ordinary least squares line as best fitted can be proven to occur.

The above answer was shared by Michael Zahir.

We have covered 40+ complete Data Science company interviews from the candidates who cracked these interviews.
Data Science Companies interview questions

We also have 30+ e-books on Amazon, Insta Mojo and books which can be delivered directly on your email address
Complete Set of e-books from The Data Monk

Understand some of the very complex topics in Analytics which are asked in most of the interviews
The Data Monk Top Articles

How to become a Data Scientist? Complete study material, free resources and websites to practice
Become a Data Scientist 

Make your profile on our website and practice at least 5-7 questions per day. Be a part of ~2000 Analytics expert

About TheDataMonkGrand Master

I am the Co-Founder of The Data Monk. I have a total of 6+ years of analytics experience 3+ years at Mu Sigma 2 years at OYO 1 year and counting at The Data Monk I am an active trader and a logically sarcastic idiot :)

Follow Me

Leave a reply