"Your doctor has collected data on you since you were born and uses that data to track your health "Elucidate the statement by analyzing the role of big data in 21st century.

Data collected makes him to understand you better

Explanation:

Data collection is a great basis for gaining knowledge on any subject, from humans to things and object, for someone to understand how things work or have an estimation of how they will turn out it in the future, it's by data collection.

The collection of data by the doctor helps him to understand the body system of the patient very well, and he can be able to diagnose or profer a solution without carrying out much test, just because he has the detail regularly.