In the K-Nearest Neighbors Method, When the Value of K

question 35

Multiple Choice

In the k-nearest neighbors method, when the value of k is set to 1

• A)the classification or prediction of a new observation is based solely on the single most similar observation from the training set.
• B)the new observation's class is naïvely assigned to the most common class in the training set.
• C)the new observation's prediction is used to estimate the anticipated error rate on future data over the entire training set.
• D)the classification or prediction of a new observation is subject to the smallest possible classification error.

---

Definitions:

Y′

A notation often used to represent the predicted values of a dependent variable in a regression model.

Y-intercept

The point where a line crosses the Y-axis in a graph.

Regression Equation

The equation that defines the points and the line that are closest to the observed scores.

Standard Error

A measure of the variation or dispersion of the sample mean from the population mean.