Question: 4.19 ( ) www Write down expressions for the gradient of the log likelihood, as well as the corresponding Hessian matrix, for the probit regression

4.19 () www Write down expressions for the gradient of the log likelihood, as well as the corresponding Hessian matrix, for the probit regression model defined in Section 4.3.5. These are the quantities that would be required to train such a model using IRLS.

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