## Questions and Answers

What is the significance of the hat symbol (ˆ) in the equation yˆi = f(xˆi) = ŵxi + b̂?

What is the primary goal when using linear regression?

What is the relationship between x and y in linear regression?

What is the purpose of step 2 in the linear regression algorithm?

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What is the purpose of starting with a random line in step 1 of the linear regression algorithm?

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What is the role of the variables w and b in the linear regression equation?

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What is the primary goal of regression in machine learning?

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In the context of regression, what do the x's represent?

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What is the notation used to represent a single data point in a regression dataset?

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What is an example of an independent variable in the context of house prices?

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What is the term for the number of data points in a regression dataset?

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What is the primary assumption of regression?

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What is the assumption made about the relationship between y and x in linear regression?

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What is the true function f in linear regression?

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What is the purpose of defining a model fˆ in linear regression?

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What is the relationship between x and y in the equation y ≈ f(x)?

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What is the notation R used for in the context of linear regression?

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What is the implication of the assumption that y ≈ f(x)?

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