Derive the MLE for multivariate Gaussian models with a diagonal covariance matrix, i.e. Nxj, with x,

Derive the MLE for multivariate Gaussian models with a diagonal covariance matrix, i.e. N¹xj, º with x, 2 Rd and 

Show the MLE of is the same as Eq. (11.3) and that of f1, , dg equals to the diagonal elements in Eq. (11.4).

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