Hydrogen trains:-- Hydrogen trains are equipped with fuel cells that produce electricity by combining hydrogen with oxygen.
This conversion process only emits steam and water, thus producing zero emissions.
Excess energy produced is stored in ion-lithium batteries on board train.
These trains also make very little noise. Moreover, hydrogen fuel cells have advantages over batteries.
Linear Regression: Linear regression is a statistical regression method which is used for predictive analysis. It is one of the very simple and easy algorithms which works on regression and shows the relationship between the continuous variables. It is used for solving the regression problem in machine learning. Linear regression shows the linear relationship between the independent variable (X-axis) and the dependent variable (Y-axis), hence called linear regression. If there is only one input variable (x), then such linear regression is called simple linear regression . And if there is more than one input variable, then such linear regression is called multiple linear regression . The relationship between variables in the linear regression model can be explained using the below image. Here we are predicting the salary of an employee on the basis of the year of experience . Below is the mathematical equation for Linear regression: Y= aX+b Here,...
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