Why is it important for machine learning algorithms to have access to high-quality data?

In K-nearest neighbor, the closer you are to neighbor, the more likely you are to

In the HBO show Silicon Valley, one of the characters creates a mobile application called Not Hot Dog. It works by having the user take a photograph of food with their mobile device. Then the app says whether the food is a hot dog. To create the app, the software developer uploaded hundreds of thousands of pictures of hot dogs. How would you describe this type of machine learning?

You work for a large pharmaceutical company whose data science team wants to use unsupervised learning machine algorithms to help discover new drugs. What is an advantage to this approach?

In 2015, Google created a machine learning system that could beat a human in the game of Go. This extremely complex game is thought to have more gameplay possibilities than there are atoms of the universe. The first version of the system won by observing hundreds of thousands of hours of human gameplay; the second version learned how to play by getting rewards while playing against itself. How would you describe this transition to different machine learning approaches?

The security company you work for is thinking about adding machine learning algorithms to their computer network threat detection appliance. What is one advantage of using machine learning?

Simple linear regression is characterized by how many independent variables?

Which of the following machine learning tools supports vector machines, dimensionality reduction, and online learning, etc.?

Which methods is used to generate non-uniform random variates and uses multiple uniform [0,1] variables?

Which of the following is NOT an example of bounded probability distribution?

A multi-layer perceptron (MLP)is a: