Cindy is a cardiologist whose patients use wearable technologies to monitor their heart health. What area of machine learning are Cindy’s patients using?

1.) financial services
2.)medical application
3.) image recognition
4.) recruiting and hiring

2.) medical application

Cindy's patients are using machine learning in the medical application field.

Cindy's patients are using wearable technologies to monitor their heart health, which means they are using machine learning in the medical application domain. Machine learning is a subset of artificial intelligence that involves developing algorithms and statistical models that allow computers to learn and make predictions or decisions without being explicitly programmed. In this case, the wearable technologies are likely using machine learning algorithms to analyze the data collected from the patients' heart monitoring devices and provide insights or alerts related to their heart health.