Question: a. What is a decision boundary in two-class classification problems? b. For a dataset with 3 features [x1, x2, x3], for a linear classifier with

a. What is a decision boundary in two-class classification problems?

b. For a dataset with 3 features [x1, x2, x3], for a linear classifier with w=[0.3, -0.1, 7.0] and b=2, what is the formula for the
decision boundary?

c. What will be the predicted class for x=[0.1, 2.1, 0.4]?

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