Logistic Regression
Uncertainty in Prediction Related to Linear Regression.
The available features x do not contain enough information to perfectly predict y, such as
x = medical record for patients at risk for a disease y = will he contact disease in next 5 years Model We still going to use linear model for conditional probability estmation
$$w_1x_1 + w_2x_2 + … + w_dx_d + b = w \cdot x + b$$……