# AWS-Certified-Machine-Learning---Specialty — Question 428

**Type:** multiple_choice
**Topics:** topic_1

## Question

A Machine Learning Specialist prepared the following graph displaying the results of k-means for k = [1..10]:
//IMG//

Considering the graph, what is a reasonable selection for the optimal choice of k?

## Correct Answer

_See scenario._

## Explanation

B seems correct based on the elbow method

**Reference:** examtopics_top_comment

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Source: https://hiexam.net/q/amazon/AWS-Certified-Machine-Learning---Specialty/428  
Practice (tracked): https://hiexam.net/study/AWS-Certified-Machine-Learning---Specialty/practice