What is the total numbers of parameters to estimate for a Gaussian Mixture Model with full covariance matrices and k clusters on a dataset with d features?

In Principal Component Analysis (PCA), which of the following best describes the role of the principal components?

You are a new hire for a laptop repair company. Your boss wants you to classify if a laptop is functional, broken, or impaired. If you select Naive Bayes as the classifier for your machine learning framework (shown below) and you have data recorded from previous test performed on a small number of laptops, which learning algorithm should you use to update the model?

Multivariate Gaussian/Normal distribution belongs to the location-scale family of distributions. The ______ defines the location, while the ______ controls the scale.

What is a socially ambiguous loss that cannot be openly mourned or supported?

What disorder includes enduring and unresolved despair over an extended period of time?

What is the reduced capacity and loss of functioning, which require a reduction in performance in most life domains?

What is the comparison of one culture with one or more other cultures? 

What is it called when the patient communicates preference for end-of-life care?

What is looking back at one’s life experiences, evaluating and interpreting/reinterpreting them, developing mature wisdom and understanding called?