Multiple linear regression - explained with two simple examples

In this video, we will see how multiple linear regression is computed. The focus is to understand how to interpret the coefficients in models with both categorical and numeric variables, and models with interaction terms.

[helenadesoba]

Alas! I found a video I could relate with well when it comes to multiple linear regression. The examples you used gave more clarity. Thanks so much

[tedransom]

Thank you! I finally understood how to interpret the coefficients in a multiple linear regression model.

[joyceks]

i've been looking for this example! so clear and well explained. thank you!!!

[archer]

Best channel❤ but underrated ..
Simple and intuitive explanation of complex concepts..
❤

[fazlfazl]

Great explanation for interaction term. Thank you.
One question though. Here you explained the meaning of interaction between a continuous variable and a categoric variable. How can we interpret the interaction when both the terms in the interaction are Continuous variables and when both the terms are Categoric variables?

[MarinaOrgino]

Can I ask... Where did you get that 30.57 and 3.55?

[tomgu]

if I had a category such as car dealer which has more than just two options (so I can't just put 0 and 1) how would I go about incorporating that?

[OMARRAFIQUE-oztd]

Thank you for this. What if we code Gender as 'M' and 'F' and not 0 and 1. Then at 10.50, it will be 12.9xM and not 12.9x1. Then how can we include 12.9xM in the intercept? What I mean is that 0 and 1 in this case are factors, can we multiply 12.9 with a factor (treating factor as a numeric)?

Also we can choose any other number instead of 0 and 1 e.g. 3 and 9. Then in this case the intercepts will be different. So, this seems arbitrary as the Gender intercepts depend on the way we choose the numbers?

[asleyarmelllevado]

do you have the data to to solve the coefficients in your example ?

[khaingzar]

Which software is used to get the equation for model
Price = constant + Age.Coefficient + Mileage.Coefficient ?

[fazlfazl]

This is a great video.
Does this mean we are actually analyzing men and women differently as we get two different regression lines: one for men and one for women. How will this compare if we run the model stratified by Gender?

[zufuqar]

but how to cumpute coefficients in multiple regression?

[SantiagoValdezRoy]

How is the code “0” or “1” determined? What if you had a third category? Would it be “2”? Only part that I didn’t follow fully.

[MsJaguarundi]

Why do you change the example midway? You didn't explain how you calculated the equations.