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All else equal, unusually high industry profits in a market with low entry barriers tend to:

A company spends $30,000 on advertising and earns $1,000,000 in sales. What is its advertising-to-sales ratio?

Lesson 2 Naïve Bayes   Choose the correct naïve assumptions of the naïve Bayes model (Choose 2).

Lesson 2 Feature Analysis and Selection   In the lecture, we set the hyperparameter C as 109 for an SVC model. What can be inferred from this fact?

Lesson 3 Density-based Models   Which hyperparameter affects the number of clusters?

Lesson 1 k-Nearest Neighbors   Let assume that a dataset consists of 4 data points. The followings are the coordinates and the label of each data point:   Point A: (2, 4) / class 0 Point B: (0, 0) / class 1 Point C: (-1, 3) / class 0 Point D: (3, 2) / class 1   If you train a 1-NN model on this dataset, what would be the prediction for Point B?

Leeson 1 Overview and Normal Distributions   What do generative models generate?

Lesson 3 Kernel Density Estimation   Which of the following is true about the kernel density estimation?

Lesson 4 Derivation of Discriminative Loss Function   You are classifying the binary dataset of 300 data points. Which of the following cannot be the value of a counting loss function?

Lesson 1 Perceptron Model   The max cost function g(w) takes a 1×3 parameter vector as an argument. Which parameter vector results in the best separation?