Summit Securities Group interview question
What are 4 assumptions of a linear regression? What are decorators in python? How to copy objects in python?
Interview Answer
Anonymous
27 May 2020
four assumptions: 1. Linearity: assume there is a linear relation between x and y; 2. Homoscedasticity: the variance of residual is the same for any value of X; 3. Independence: observations are independent of each other; 4. Normality: for a given x, y has a normal distribution;