[TBD]Purpose of linear regression

Introduction

Laymen explanation

Suppose that you want to know to design a weight chart for kids. This chart will be used by parent to check if kids weight is good as he grows (increases height). To do this, one way is to observe weight of various healthy kids you will take samples of their height and weight. From this sample, you should be able to predict possible weight for those heights which are not mentioned in the sample. Linear regression technique helps in this regard

Technical explanation

Limitation of linear regression

Reference

https://onlinecourses.science.psu.edu/stat501/node/253

https://www.youtube.com/watch?v=ZkjP5RJLQF4