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What is the formula for mean squared error?
in Data Science & Statistics by Platinum (141,884 points) | 38 views

1 Answer

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Best answer
The mean squared error (MSE) is given by
\[
M S E=\frac{1}{n} \sum_{i=1}^n\left(y_i-\hat{f}\left(x_i\right)\right)^2,
\]
where \(\hat{f}\left(x_i\right)\) is the prediction that \(\hat{f}\) gives for the \(i\) th observation.
by Platinum (141,884 points)

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