To determine the optimal number of clusters in K-Means using Elbow and Silhouette methods
The Elbow method is used for determining the optimal number of __________ in a clustering algorithm.
In the Elbow method, the x-axis represents the number of ___________.
The Elbow method plots the ___________ against the number of clusters.
The Silhouette method evaluates the __________ of clustering results.
Silhouette score ranges from _________ to +1, where higher values indicate better-defined clusters.