The following statements describe the KNN method. Determine whether each of the statements is true or false.

Group of answer choices

$1.$ The KNN method is an example of non$-$parametric approaches.

$[$ Choose $]$True$$False$$

$2.$ As K increases, the method becomes more flexible.

Group of answer choices

$1.$ the method becomes more sensitive to the changes in the training set.

$[$ Choose $]$False$$True$$

$2.$ the average responses estimated by the method get closer to the true average responses.

$[$ Choose $]$False$$True$$

$3.$ the amount of errors between the predicted responses estimated by the method and the true responses in the training data becomes larger.

$[$ Choose $]$False$$True$$

$4.$ the amount of errors between the predicted responses estimated by the method and the true responses in unseen data $($not used in training$)$ becomes smaller.

$[$ Choose $]$False$$True$$

Group of answer choices

$1.$ We collect a set of data on the financial performances and other characteristics of Fortune $500$ companies. We are interested in understanding which variables affect the stock price of those companies.

$[$ Choose $]$Regression and Inference$$Classification and Inference$$Classification and Prediction$$Regression and Prediction$$

$2.$ We would like to develop a spam filter which predicts whether an incoming email is a junk mail based on the usage of the words in the incoming email.

$[$ Choose $]$Regression and Inference$$Classification and Inference$$Classification and Prediction$$Regression and Prediction$$

$3.$ We are about to launch a new product and want to know whether it will be a success or failure based on the results of similar products launched in the past five years.

$[$ Choose $]$Regression and Inference$$Classification and Inference$$Classification and Prediction$$Regression and Prediction$$

$4.$ We collect a set of data on the booking records for the flights offered by an airline company and want to find out what are the important factors which determines whether the customer with the reservation of a flight eventually shows up at the time of the flight.

$[$ Choose $]$Regression and Inference$$Classification and Inference$$Classification and Prediction$$Regression and Prediction