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.

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Definitions:

Sample Size

The number of observations or units chosen from a population to participate in a study.

Confidence Interval

A sequence of values, stemming from sample analyses, presumed to contain the value of an undisclosed population parameter.

Confidence Level

The probability or percentage that expresses how certain one can be about the confidence interval containing the true parameter value.

Confidence Level

The probability that a confidence interval contains the true population parameter.